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The computer does not boot beyond the Windows XP splash screen. Why won't my computer boot? Recommendations for resolving the problem But it won’t load

An unpleasant situation when, after pressing a button, Power computer does not turn on, can happen to any user. There may be various reasons for this system behavior. But don’t panic, many of them can be eliminated on your own or by contacting specialists.

Causes and solutions

If, when you turn on the machine, it does not show signs of life, does not start or the operating system does not load, in general, the reasons for this can be very different and we will analyze them below.

The most common problems:

lack of connection to a source of electricity;
power supply failure;
CMOS battery problems;
problems with components;
broken power button;
motherboard malfunction.

Some of these problems are easy to diagnose and fix at home, while others will have to be addressed. In any case, it would be a good idea to try to fix the problem yourself.

Problems with 220V

Often, due to their carelessness, users encounter basic difficulties, but there is no need to panic ahead of time. First you need to look at what happened. If the fans do not spin and the indicators do not light up, then you need to check for power.

First of all, if any equipment malfunctions, check whether its connection to the electrical network is working properly

You can check that electricity is supplied to your PC by following a few simple steps:

make sure there is voltage in the outlet;
check the connection of the surge protector to the outlet and its operation, for example, by connecting another device to it;
Make sure that the electrical wire is connected correctly to the system unit and the outlet.

If the problem cannot be resolved by simply checking the PC connection, then we look for the problem further.

The power supply is faulty

Problems turning on a PC quite often occur due to a faulty power supply. This problem occurs due to voltage surges, which are not uncommon in our networks.

Let's look at the main signs indicating a faulty power supply:

when you press the power button, the equipment does not respond at all;
The lights come on, but nothing starts.

In any case, you can determine whether the power supply is to blame for the situation only by installing another one that is known to be good. In many cases, if this component fails, you will also have to replace the motherboard or send it for expensive repairs.

Video: If the computer does not turn on, what should I do?

Battery doesn't work

On the motherboard inside system unit There is a small CR-2032 battery. She is responsible for storing settings basic system PC I/O. The battery life is quite long.

But in some cases, the CR-2032 battery fails after a couple of years, and various problems arise with the clock and switching on. In this case, you just need to replace it.

Let's look at how battery discharge usually manifests itself.CMOS:

the computer does not turn on at all;
the start occurs after several presses of the power button;
clock failures;
PC randomly turns on when voltage is applied;
reboot without user request.

In fact, the manifestations may differ slightly depending on the system configuration and other external factors. You can purchase the battery needed for replacement at computer, hardware and other stores.

Dust in the system unit

A fairly common cause of problems starting a computer is dustiness. Failure in this case can manifest itself in different ways: from stopping the system, to random shutdown or the inability to start the machine.

The procedure for cleaning the system unit:

turn off by unplugging all cords from the outlet;
open the lid;
remove dust, for example, with a brush;
clear contacts random access memory, video cards and other components;
check fans for jamming;
If necessary, perform preventive maintenance in the form of replacing thermal paste.

Problems with components

Failure of individual PC components may also make it impossible to start it. In this case, it is quite difficult to independently diagnose the problem at home. In some cases, signals sent when the OS starts can help determine the problem.

In this case, you will need to know the BIOS manufacturer. In addition, a description of the signals sent when turned on can be found in the instructions for the motherboard. Most often, a squeak can indicate problems with RAM or video card.

You can fix the problem by replacing the components with serviceable ones, but before doing this, it is recommended to try cleaning the contacts using a regular school eraser. In some cases this method is very helpful.

The reason why the PC cannot be started from the button may lie in the switch itself. Simply put, it may not fully close the contacts. You can check the problem yourself by closing the corresponding pair of contacts on the motherboard using a screwdriver.

Attention! Closing contacts on their own is recommended only for those who are confident in their actions and have the necessary knowledge. For the rest, it is better to turn to our specialists for help.

Motherboard

You can determine the malfunction of the motherboard or system board yourself with high accuracy only by replacing all other components with serviceable ones. In rare cases, the signals supplied by the BIOS will help with diagnostics.

Most often, when such a problem occurs, the fans turn on and work, but there is no image output or other reaction of the PC to user actions. Repair motherboard in most cases it does not make sense, since the cost of work may exceed the price of new part in the shop.

Note. Often problems with the mother are mistakenly described as a malfunction, I turn on the computer, but the monitor does not turn on. There is confusion between problems with the monitor and lack of video signal. It is easy to check the operation of the monitor by disconnecting the signal cable from the system unit and looking for the presence of the manufacturer's splash screen.

The computer won't turn on

Your personal computer may stop turning on for a huge number of reasons. But among them we can highlight the most common ones. Some of them can be eliminated by the PC owner himself without contacting service center, but first of all, it is necessary to establish the cause of the malfunction.

Let's look at the most common malfunctions due to which the equipment may not turn on:

video card defect;
problems with the processor;
problems with subsequent cleaning;
crashes due to hibernation;
incorrect operation due to replacement of parts.

Video card defect

Video card problems are fairly easy to diagnose. First of all, when you turn on the computer, but the monitor does not turn on, the fans will mostly spin.

When installing a working video card, the image usually appears. Owners of motherboards with integrated video can also use it to check the functionality of the video adapter.

Most video cards fail due to poor cooling, for example, when the system unit is very dusty or the cooler is broken. Therefore, during prevention, it is necessary to pay special attention to removing dust and checking the fan on the video card.

Due to processor replacement

After replacing the processor, users often encounter the inability to turn on their home computer. This problem is usually easy to fix.

check the compatibility of the motherboard and the new processor;
reset BIOS settings;
clean contacts;
make sure that all components are installed correctly.

Advice . Additionally, signals emitted by the system speaker can help with diagnostics.

As a result of a power surge, many PC components can fail. As a preventative measure, it is recommended to connect the computer to the power supply using high-quality stabilizers.

Components that fail most often during power surges:

power unit;
motherboard;
video card.

It is worth noting that several components may be damaged at once and not necessarily those from the list above.

Consequences of cleaning

Many users, having decided to clean the system unit from dust for the first time, are faced with the inability to start the PC after reassembly. In this case, there may be quite simple reasons or components may fail.

Actions that need to be taken if the PC does not start after cleaning:

check cable connections;
make sure that the power supply connectors are correctly and tightly connected to the motherboard;
check the installation of RAM and video card;
if the cooling system was removed, then you need to make sure that it is installed correctly and that there is a sufficient amount of thermal paste;
make sure the other boards and devices are connected correctly ( hard drive, drive, etc.);
reset the BIOS settings using a jumper or by removing the battery for a few minutes.

Hibernation and its consequences

Hibernation mode is designed primarily to reduce laptop power consumption and increase battery life. When you turn off the PC using this method, all data is saved on the hard drive. Some systems may not turn on after entering this mode.

You can start the computer by unplugging the power supply for a few minutes and turning it on again. In this case, the OS may stop starting. You'll have to use system restore.

Some PC owners are forced to replace the motherboard due to the fact that the old one has failed. It is important to ensure compatibility new board with the rest of the components, and also perform the installation correctly. But even in this case, problems may arise.

Let's consider the basic steps if the computer does not start due to replacing the motherboard:

check the connection of the power supply and installation of additional boards;
temporarily disable HDD and others external devices, starting without which is possible;
make sure the RAM is installed correctly, clean the contacts on the modules;
try starting the board without installed RAM and video card and check for signals through the speaker;
Replace the power supply, RAM, video card, and processor in sequence with a known working one.

Updates

During the installation of some updates, the performance of the OS may be impaired and, as a result, the PC stops starting. To solve this you will have to use System Restore.

Run System Restore inWindows 7:

The system will then try to fix startup problems on its own. If problems persist, you can try reinstalling Windows.

When replacing RAM

Problems after replacing RAM are quite rare. First, make sure you have selected compatible modules.

4 points that must be followed if the PC stops starting due to RAM replacement:

check that the module is installed correctly;
try to start the system using only one module;
clean contacts;
Perform a test run of the system with a known good module.

The computer turns on, but there are problems

In some cases, the computer turns on, the fans start, but the operating system does not load or there is no image on the screen. There are many reasons for this computer behavior.

Is not downloading

If the machine turns on, but Windows does not load, then you need to look for the problem there. This behavior occurs when an update fails, programs are installed incorrectly, or simply due to a malfunction.

You can try to fix the problem with loading the operating system in the following ways:

start the computer in safe mode and try to roll back to one of the previous restore points;
use OS recovery tools;
scan for viruses using special boot disks;
reinstall Windows.

It is worth noting that in some cases the inability to start the OS may be due to a hardware malfunction. Then you can try using specialized utilities for HDD testing and RAM or contact a service center.

No image

In some cases, the equipment starts up, but there is no image. At this time all the fans turn on, you can hear work hard disk, and sometimes Windows even starts, which can be heard from the characteristic sound. This problem is mostly hardware in nature.

What to do if the computer turns on, but there is no image:

check connecting cords;
make sure the monitor is working by disconnecting it from the system unit;
clean the video card contacts and check the operation of the cooler;
try using another external or integrated video adapter.

There are a large number of problems due to which the machine does not turn on or does not start the operating system. You can try to eliminate many of them yourself using the tips from this article. If nothing helps, or the diagnostic process seems difficult for you, then you will have to turn to our specialists for help by leaving a request. Don’t waste time if you don’t have experience, don’t disassemble your computer, you can only make the situation worse, and our specialists will quickly help you.

If a user has a problem when Windows 7 does not start on a computer or laptop, then this article will help solve this difficult problem. Starting Windows 7 is sometimes impossible due to errors occurring in the system after hardware problems or incorrect installation software, malicious utilities, etc.

But the most common reason why Windows 7 sometimes won’t load lies in the operating system itself.

Solution

In the case when all the initial stages of launching Windows 7 on a PC or laptop are performed normally, but Windows 7 still does not start completely, this usually confuses novice users. Although if available detailed instructions, the question: “What to do?” will not appear even for beginners. If the problem is caused by hardware failure, then it will be indicated by the signal from the speaker of a laptop or desktop computer during the POST test. If this is the case, then the OS will not start.

But if the problem programmatic and the process stops at the stage Windows downloads 7, this means that the user has encountered the most common problem that can be solved using an algorithm of typical actions.

Instructions for action

You must use an OS recovery tool. During the PC startup process, if Windows 7 does not start, the system often recommends that the owner of the computer or laptop select boot options. If for some reason such an offer has not been received, then the user can independently open this menu by clicking on the “F8” button. Then proceed to "Sevens".

What to do if the above instructions did not solve the problem?

To fix the problem when Windows 7 does not start, you need to use a CD with the OS:

Insert the installation disk into the PC drive;
Start the system from the disk (in the BIOS the appropriate order for booting the system from media must be set);
In the window that appears, click on “Apply recovery functions that resolve OS boot problems” and click on “Next”;
Then in the “OS Recovery Options” menu, click on “Startup Repair”;
Wait until the system analysis is completed and the causes of failures are eliminated;
Reboot the PC;
In the BIOS, set the system to start from the hard drive ( When exiting the BIOS, be sure to save the adjustments made);
Restart the computer again;
Ready! Windows 7 will now boot normally.

Using the command line

If for some reason it was not possible to restore Windows using the installation disk, then there is another way to do this through the command line.

First, you need to take the steps indicated in the paragraph about restoring normal loading of the “Seven”. The only changes are that simply in the “ ” menu you now need to specify the section “Command Line”.

What to do when you fail to achieve a positive result by following the above instructions?

If success was not achieved and the user has already reached this part of the article, then the problem cannot be classified as a typical failure boot distribution OS. You will need to do all further actions in Windows safe mode. It is recommended to analyze drive “C” for the appearance of broken clusters.

To enter “safe mode” you must do the following:

Why are preventive measures important?

Windows 7 has a special system that can make special reference points, with the help of which, if necessary, it is restored. By using this protection function, even a novice user can always easily return the OS to a working state.

For example, in case of failures due to incorrect installation of applications, drivers and other utilities such as codecs, or when errors occur due to adjustments being made to the registry.

It should be noted that in “Seven” it is possible to allocate a fixed amount of memory on the hard drive specifically for such protection of the operating system. Implementation available in Windows 7 self-configuration protect files along with system data, or you can do this separately.

At one point, an annoying and frightening nuisance can occur - the computer seems to turn on, but the loading stops at the display of the motherboard splash screen. Today we will tell you why this happens and how to deal with such a malfunction.

The first thing you need to remember when faced with the problem of freezing on the board logo is that the problem in most cases lies in the periphery. Hard drives are especially prone to this, especially those that are older than the motherboard. Sometimes the problem is a random glitch that can be easily fixed by resetting or updating the BIOS. In the remaining cases, the problem lies in the motherboard itself. Let's look at each reason in more detail.

Reason 1: BIOS settings failure

In some cases, the cause of freezing is problems in the boot files. BIOS settings. This often happens when the computer crashes, an attempt is made to hot-wire an IDE hard drive, or there are problems with the firmware. If there is a problem with the BIOS settings, resetting them will help. You will find details on the necessary manipulations in the manual below (methods 2, 3, 4).

In addition to the material about resetting, let's add a life hack: leave the motherboard without a CMOS battery for a longer period than 10 minutes. The fact is that sometimes a residual charge may remain on the board elements, which does not deplete after the specified time, and it may take several hours or even a day to completely de-energize. If resetting the BIOS helped you, congratulations. IN otherwise move on to the next reasons described below.

Reason 2: Conflict with a peripheral device

The vast majority of cases of freezing on the logo are caused by a software conflict between the motherboard and peripherals and/or an element such as a GPU, network card, hard drive or one of the RAM sticks. In this case, it is necessary to find the culprit of the problem and either replace it, or carry out one of the specific manipulations we propose. But before you start searching, follow the verification procedure according to these instructions.

If the problem is with the board, go to Reason 3. If the board is working, then you should check the remaining components of the computer, following the algorithm below.

Disconnect your PC from the power supply. Then remove the side cover of the case to gain access to the motherboard.
Sequentially disconnect the hard drive, floppy drives and drives from the board. Then carefully remove the cards (video, audio and network, if present) from the connectors.
Leave only one stick of RAM, regardless of the number of slots. To be safe, you can move it to another slot.
Following safety precautions, connect your computer to the network. With a minimum set of equipment, the board should work normally.
Connect the components to the board one at a time, starting with RAM and ending with disk drives. Using a brute force method, you will find the problematic element.
Attention! Do not try to connect a graphics card, sound card, network card, or IDE hard drive to a working motherboard! In this case, you risk damaging both the board and the connected device!

As a rule, problems are created hard disks, video cards and faulty RAM elements. Let's consider the necessary procedure for each device.

HDD
Most common reason failures. In most cases, the disk simply fails; you can check it on another computer.

In addition, you can also try connecting the hard drive in IDE mode. To do this, follow this procedure.

If the problem is still observed, then you are most likely experiencing damage to the MBR and partition table. When connecting such a disk to another computer, you will most likely encounter the format file system RAW. What to do in this case, read here:

LAN card
The second common culprit for freezing at startup is external LAN card. This element is very sensitive to voltage surges or static electricity. Out of order, this component may cause the impossibility of self-diagnosis, and as a result, enter it into endless cycle, not allowing you to load further. The only solution in this case is to remove the problematic component.

Video card
Some GPUs conflict with boards, especially from little-known manufacturers. Sometimes the problem is caused by a discrepancy between the internal software of the latest video cards from Nvidia and some motherboard models from Gigabyte. Fortunately, there is a fairly simple solution - updating the BIOS. We describe the typical procedure in a separate manual.

If this procedure does not help, then the only option is to replace either the GPU or the motherboard.

USB devices
Sometimes a freeze when loading the BIOS occurs due to a problematic USB device, and often these are not flash drives or external HDDs— there are known cases when the cause of the problem was a 3G modem connected to the computer for recharging. The suspect device should no longer be connected to the board.

RAM
RAM sticks can also fail, especially in the event of a strong power surge. If you find a non-working element, replace it with a similar one that functions correctly.

What to do if your laptop or computer won't boot. Possible problems and ways to eliminate them.

If your PC or laptop won't boot, don't panic. Although the problem may be serious, you can most likely fix it yourself.

Problems with loading a PC are not always the result of a serious breakdown of its hardware. Often this is a loose wire, a blown fuse, or an unsuitable driver for the device. Let's look at the most common faults and ways to solve them.

Check power supply

Laptop

This is one of the most common problems. And in different versions. From using the wrong voltage to a blown fuse in the connector. There is also a non-working socket.

First of all, check if the battery has a charge. If you are not sure and there is no indication, remove the battery and use only the charger.

Don't forget to check that the charger is from your laptop. Often laptop manufacturers use connectors same size. Especially if it is one company. And if there are a lot of chargers, it’s easy to confuse them and connect the wrong charger to the device, which gives a different voltage or insufficient current. After all, other gadgets also use charging device. But hardly the same voltage as a laptop. A laptop usually requires 16-20V.

Then, check the fuse in the connector. The easiest way is to remove the old fuse and install a new one that is probably good. If you have a spare power cable, try it. This is a faster option for checking the fuse.

Check the power cable. Its weak points are at the ends, at the point of connection to the black box and at the connector for connecting to the laptop. If you see colored wires, it's time to buy a new cable.

Desktop PC

The desktop computer also has power problems. And the first thing you need to check is the fuse in the connector. There is a fuse in the power supply itself, but to check you will need to open the PC case and remove it.

One of the most common computer power failures is when your computer suddenly turns off and won't boot again. Start your search with the Power button.

Alternatively, connect the appropriate motherboard pins together (check your motherboard manual) and remove the power button.

Check your monitor

Laptop

Disconnect any external displays. Including monitors and projectors. Make sure they don't interfere with your laptop's boot time.

If the laptop's power light is on and you can hear the hard drive or fan running, but there is no image on the screen, go to a dark room. Check if there is a very weak image on the screen.

If there is still a faint image, it may be the Windows logon screen, most likely the display inverter has stopped working. This component modifies the input from the mains or battery D.C. into the variable required by the monitor.

Replacing an inverter isn't too difficult, but it's critical to avoid mistakes and buy the right part. Since inverters are not cheap, you cannot afford it.

If your laptop boots, but there is no image, even a weak one, the LCD panel is most likely faulty. Replacing a laptop screen is certainly possible, but it is difficult and certainly not cheap. If the laptop is old enough, it is better to consider buying a new one.

Desktop PC

In this case, the easiest place to start is by replacing the video cable, power cord, or monitor itself. If you have the opportunity, change them one by one and see what happens.

Remove any USB devices and memory cards

Assuming that everything is in order with the power supply and the monitor, the next culprit for computer boot problems could be USB device and a memory card. Moreover, leaving a memory card or USB device in the port is a classic option.

Typically, the BIOS reads removable media storage (including memory cards) until Windows boots. It could also be a CD left in the DVD drive, check there too.

Try a recovery disk

If you see error messages, or the system freezes and won't boot before you log into Windows, try using . You can use the Windows installation DVD or . Run any of these drives and try to resolve the problem. If the malfunction is caused by a virus, use special tools from antivirus software manufacturers.

Boot into Safe Mode

If you can't boot your computer normally, there's always the option to log in securely. Standard method– F8 key.

If you go into , you can undo any changes you've made. Anything that causes your laptop or computer to stop booting. Delete recently installed program, updated driver or create a new user account if the old one is damaged.

If you see an option to restore your computer, try it, although you will need the Windows installation disc to do this.

Remove defective hardware

If you recently installed new RAM or some other hardware, this could also be the reason why your PC won't boot. Remove them (reinstall old ones if necessary) and try again.

If your motherboard has a built-in LED readout that shows POST codes, look for a manual or look on the Internet what these codes mean.

Quite often it is difficult to start a new self-assembled computer. In this case the best option disable everything except what is necessary for BIOS boot minimum.

. Along with the radiator.
. If the motherboard has graphics output, remove the graphics card plugin.
One . Remove the rest and leave one module in slot 0 or as the manual recommends.
Power supply
Monitor

All other equipment is not necessary. For Windows startup No hard or optical media or any other PC components are required.

The most common reasons for a newly built computer to fail to boot are:

Incorrectly connected to motherboard power wires. If your board near the processor has an additional 12v connector, make sure it is connected correctly, in addition to the large 24-pin ATX connector.
Components are not installed correctly. Remove memory, video card and processor. Reinstall them again, being careful not to allow any bending of the pins on the processor, and in the processor socket.
The power button wires are connected to the wrong pins on the motherboard.
The power cables are not connected to the graphics card. Make sure that if your GPU requires it, the PCI-E power wires are connected correctly.
The hard drive is connected to the wrong SATA ports. Make sure that the main drive is connected to the SATA port of the motherboard chipset, and not to a separate controller.

Sometimes the computer does not boot because the hardware has failed. a common problem- hard disks. If you hear strong clicks, or the hard drive spins up and turns off several times, these are signs of its breakdown. Sometimes people take the storage media out and put it in the freezer (in a freezer bag) for several hours. However, this solution is usually temporary. Buy a new hard drive and transfer your data faster.

Get a new hard drive and start the build again. We dare to hope that everything will work out for you.

Situations often arise when operating system Windows XP suddenly stops loading. There can be many reasons for this, and each specific problem requires an individual solution. However, if the user knows why the computer may malfunction, then he can easily solve the problem on his own. All possible reasons failures can be divided into two groups:

Hardware - something has broken in the inside of the computer, and Windows no longer works;
Software - software errors have arisen in the OS itself that interfere with the correct operation of the system;

It is also worth paying attention to at what stage the OS does not load, that is, what manages to appear on the screen, and after what particular event you detect a failure. In this case, we will consider the situation when Windows XP no longer starts after the splash screen appears.

What can be done

The very first method you need to resort to is loading the system's last known known configuration. After all, the cause of the malfunction may simply be that you, for example, installed an incorrect program or driver on your computer, due to which the OS does not load normally. Accordingly, for the system to operate normally, you need to return it to the moment when these tools were not installed. There is a special section in the system registry HKEY_LOCAL_MACHINES\SYSTEM\CurrentControlSet, where information about the last problem-free boot is recorded. It is with the help of this windows partition will determine the last known known configuration and boot based on it.

Another option is to run windows XP in safe mode.

With this method, only the minimum required set is loaded software For windows work, none of the supporting programs are loaded.

If you were unable to boot your system as usual, but it booted into safe mode without any problems, this already means that you most likely recently installed some software on your computer that is causing your system to fail. starts.

See also: Features windows login xp without password

After starting your computer in safe mode, you should windows recovery XP. To do this, you need to run the recovery utility, which is located in the All Programs/Accessories/Utilities/System Restore directory. It takes so-called snapshots of important system files, and saves the resulting information in the form of restore points at which the system boots normally (more precisely, it booted before the problem occurred). Points can be created manually, but periodically they are created automatically (for example, after installing new software). You need to select the desired point and then start the recovery process. Upon completion, the computer will restart.

If all else fails

If previous attempts have failed and your system still won't boot, your last resort may be to restore your system using the installer. In order to do this, you will need installation disk with windows XP. Insert it into the drive, enter the BIOS and set it to boot from it. You can also use USB drive. If a window appears on the screen asking you to press any key to continue working, then do just that. The operating system installation window will appear. windows systems XP. You will need the first item, by selecting which you will begin installing Windows XP on your computer. First of all, a license agreement will be displayed on the screen, which you must accept, otherwise you will not be able to install the OS.

In the next step, the message “Search for previous versions” will appear at the bottom of the screen Microsoft windows..." Thus, the program determines what it needs to do next - install the system on the computer or launch a recovery mechanism for an already installed OS. There is one rather important nuance here - for the recovery procedure to be successful, you will need a disk with exactly the same copy of Windows that you had previously installed. This is due to the fact that each operating system has its own serial number, which during the installation process is also checked against the previously installed copy.

The computer does not boot. There is an image.

The computer does not boot. Disconnect flash drives connected to the computer, remove the DVD/CD disk from the DVD/CD-rom (if any), disconnect unnecessary peripherals, printer, scanner, etc. Let's check. If the download starts, then we turn on the disabled equipment one by one, find out what exactly affected the download, and fix it. Did not help? Go ahead.

Go to BIOS (Del; F2), set boot priority. A hard drive must be installed.

1) It is necessary to check the nature of the image on the screen.

If the screen is black, then see the article “The computer does not boot. No image”, if the background is black, but there are entries on a black background, then this article is for you. The most common is the appearance of the inscription: press f1 to continue. As a rule, you can press F1 and the computer and operating system will boot. And in order to fix the problem, you need to pay attention to the error when loading. The most common ones look like this:

A) cmos date/time not set or cmos battery low

Low battery. Signs: The time and date on the computer are constantly getting lost. You need to buy and replace a cr2032 battery.

B) cpu fan error.

Literally this means the following: an error in the operation of the processor fan, press “f1”. You need to open the cover of the system unit and look at the condition of the processor cooling cooler. The error means that the fan speed has decreased or it does not work at all. Prevention is usually sufficient. See the article “not downloaded.” computer. No image." Or replace the processor cooling cooler along with the radiator.

B) no keyboard detected.

Keyboard not detected. Reconnect the keyboard, if it has USB interface. If PS\2, then you first need to turn off the computer completely, then reconnect.

D) no hard disk is detected.

Hard drive not detected. Go to Bios and check if the hard drive is in the list. In photo 2 hard drives.

If not, we try to reconnect the hard drive, connect it to another Sata interface, if the hard drive is also not visible, then most likely it has “decided to live for a long time”, we change it to another one. We can also diagnose the hard drive using the MHDD program; there is a separate article on this topic “hard drive diagnostics”

D) cmos checksum bad/error.

I also recommend going into the BIOS. Typically, when you boot your computer, you need to press the Del key, sometimes F2, depending on the hardware manufacturer. Restore date and time settings, download optimal settings(restore to default).

Note: Please pay attention to the operating parameter Sata controller. If you set the default to Ide, and the operating system was installed in ahci mode, you will see a “screen of death” upon boot. You need to return it to the mode in which the operating system was installed.

2) If these steps did not help.

Computer won't boot? and you see the operating system screensaver loading and then nothing happens, then you need to diagnose the hard drive and RAM. If the hardware is working properly, you may have installed an incompatible driver or program - you can try logging into safe mode (usually press F8 several times during boot) and remove this software or driver.

You can also try loading the “Last Known Good Configuration” with working parameters.

If this does not help, you need to create bootable USB flash drive, boot from it and start installing the operating system, try to perform a recovery. Restoring the last save point.

If the image is something like this:

You need to restore the windows bootloader. We tried system restore, didn't it help? Go ahead.

3) These steps did not help?

You need to reinstall the operating system. You can do this yourself, based on my articles on installing Windows, and you can also order paid service. See install/reinstall windows in Kazan price.

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Reasons for windows 7, 8 and 10 if the OS does not load

Most of the features the average owner uses desktop computers and laptops, are accessible to humans thanks to the use of special operating systems on technology. The most popular OS is a product from Microsoft. Therefore, if Windows 7 or one of the other OS variants does not load, the user faces serious problems.

There are many reasons why Windows 10 (7, 8, XP) does not load. Often in this case, an unpleasant situation is accompanied by a specific error message. But what to do if Windows 10 (7, 8, XP) does not load on a laptop or regular PC without such messages? There are several universal methods treatments that can lead to a way out of the current situation.

Selecting the download type

This is the simplest fix method if Windows 7 or another type of operating system from Microsoft does not load. What you need to do:

Start rebooting the computer.
Press the “F8” button.
In the proposed list, select the launch item with the most successful configuration.

In some cases, this action is quite sufficient when Windows 7 (8, 10, XP) does not load.

Windows Recovery

So, windows won't load. You can try to return Windows to full functionality using the recovery menu. To do this, of course, you will need to have on hand boot disk with the desired OS variant. What actions should the user take in this case if Windows 7, 8, 10 and XP does not load:

Insert the source into the drive.
Change the priority in BIOS. That is, the operating system should not be launched from a hard drive, but from a DVD-ROM.
After starting the process, you will need to press the “R” button.
Select the option to restore.
Wait for the results. Restart the equipment one more time. Windows XP (7, 8, 10) still won't load early? Next option.

If previous operations have been carried out, but Windows 7 still does not boot, you can try to restore it directly using the tools of the operating system itself. It's quite simple:

Pressing the magic button “F8”.

Selecting further boot in security mode.

Receipt limited access to the operating system.

Making the transition: “Start” - “Standard” - “Service” - “Recovery”.

An attempt to return the OS to an earlier state that was stable.

Naturally, at the end you will need to restart the computer to check whether Windows 10 (7.8, XP) does not load or whether the problem has been successfully resolved?

Boot file disinfection

If after windows updates 7 does not load, then the possible cause of the problem lies in a damaged boot file Boot.ini. To fix the problem you will need to follow these steps:

Start the PC using the same external source.
In the recovery menu, go to the command line.
Enter the phrase “Bootcfg/add”.

Wait for the process to complete and initiate another reboot to check whether Windows 8 or its equivalent of a different version does not load, or whether the treatment helped in this predicament?

Boot record defect

Another option for trouble with Windows. Windows won't load? The boot record may have become corrupted. In this situation, you will need to repeat almost the entire procedure described in previous paragraph, but enter a completely different phrase into the command line. Namely: “Fixmbr\Device\HardDisk0”.

Perhaps this action will be quite enough when Windows 7 does not load and freezes on the logo.

Damage to the boot sector on the hard drive

This nuisance can lead to a situation where, for example, Windows 7 does not load beyond “Welcome”. Here the treatment is also quite simple - the steps are repeated by running the command line from the computer user, into which you should type “Fixboot” and then the letter that is responsible for the hard drive partition where the installed OS version is located.

Quick reinstall

Sometimes, if the computer does not boot beyond the Windows 7 splash screen, only reinstallation can help. But it is not at all necessary to launch a full-fledged procedure that lasts quite a long time. You can speed up this process. This is a very powerful treatment tool as it can deal with most of the troubles that arise.

What is required from a person:

Start again from the boot disk.
Press the “R” button, then the “Esc” key.
Choose quick reinstallation operating systems.

It is important to understand that this procedure can only work if identical versions of the OS are located on the disk and hard drives. That is, if, for example, Windows 10 does not boot after the update, but you should not try to quickly reinstall it using a boot disk with Windows 7 or 8 for this purpose.

Conclusion

A special case of such a situation may be constant automatic reboot OS. Naturally, this option excludes the possibility of any therapeutic processes. To break this sequence, you will need to press the “F8” button the next time you start the system and go to the “Advanced parameters” menu. After this, disable the OS reboot procedure and if failures are detected. Well, then you can use one of the treatment options described above.

All described methods are universal. That is, they are recommended to be used only when it is not possible to accurately determine the root cause of the malfunction. Most often, the user can see a message on the monitor screen indicating a specific error code. And each of them has their own method of correcting an unpleasant situation. Most of them can be easily found on this Internet resource dedicated to answering questions related to OS damage from Microsoft.

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The computer turns on, but the operating system does not start: possible causes and solutions to the problem

Unfortunately, sometimes you can encounter quite serious problems with turning on computers and starting operating systems, although until a certain point there were no signs of trouble. It happens that the computer does not turn on at all, but most often the computer turns on, but the operating system does not start. It is these situations that will be discussed further. Let's look at questions related to why the computer won't boot and what to do in such situations. There are several universal solutions here.

The computer turns on, but the operating system does not start: reasons

Among all the possible situations when failures occur at the loading stage, several typical cases can be identified.

There are three options:

a black screen appears;
arises blue screen BSoD;
The operating system starts, but cannot fully boot.

In the first case, when the computer does not start (the boot does not turn on), messages may appear on the black screen indicating physical or software problems. In the very simple case, when nothing serious happens, the system may report that, for example, the keyboard is missing (for desktop PCs). The simplest solution is to connect it and reboot.

If the computer turns on, but the boot does not start, and instead warnings about software failures or missing files appear on a black screen, there can be many reasons for this system behavior. Among them, first of all, we can highlight problems with the hard drive, damage to the operating system (accidental or intentional deletion of system components or registry entries), exposure to viruses, incorrect entries boot sector, RAM conflicts, etc. By the way, if a blue screen pops up, this is more related to the “RAM” or recently installed drivers devices that cause conflicts not at the software level, but at the physical level.

What to do if the computer does not boot and the operating system does not start for the above reasons? Depending on the situation, there are several solutions. To an uninitiated user, they may seem quite complicated, but in certain situations only they can be used to resuscitate the system. Therefore, you will have to spend both time and effort.

The computer turns on but does not boot: what to do first?

So, let's start with the simplest thing. Let's assume that a short-term technical failure has occurred in the system, for example due to incorrect shutdown or power surges.

As a rule, almost all windows modifications used today usually automatically activate system recovery upon restart. If this does not happen, before starting the system you will have to use the F8 key to call up the additional boot menu (a different method is used in Windows 10).

The computer turns on, but the operating system does not start? There's no need to get upset. Here in the very simple version you can select the line to load the last working configuration. If with system components everything is fine, the system will boot without problems. If this does not help, you will have to use the troubleshooting section, and sometimes even trying to boot into safe mode may be successful.

Possible viral infection

Unfortunately, viruses can also cause such situations. What to do if the computer does not turn on? Ways to solve this particular problem come down to using a powerful antivirus scanner, which could check for threats even before the OS itself starts.

Among the variety of anti-virus software, it is especially worth noting disk utilities that start directly from an optical media or USB device and have their own boot records and even GUI like windows. One of the most powerful tools is Kaspersky Rescue Disk. Its use can guarantee almost one hundred percent detection of viruses, even those hiding in RAM.

RAM conflicts

Now let's see what to do if the computer does not boot and instead a blue screen appears. As already mentioned, most often this indicates problems with drivers and RAM. We’re not touching the drivers yet, but let’s look at the RAM.

The proposed solution to the issue of if the computer does not boot is mainly designed for stationary PCs. In this situation, you should remove all memory sticks, and then insert them one by one and check the load. Perhaps one of them is the link that causes failures. This may occur when trims from different manufacturers are added.

If the system can somehow be loaded using the same safe mode, the RAM should immediately be checked using the Memtest86+ utility, which will help identify the true cause of the problem.

The system does not see the hard drive

Now the worst situation is when the computer does not boot. The causes and solutions may be related to the hard drive.

A hard drive can have both software and physical problems, although sometimes that’s not even the issue. The problem may be completely trivial: the user has BIOS settings boot priority is set to boot from a removable device, such as an optical disk, which this moment is in the drive, but is not a system file. You just need to remove it and download again.

On the other hand, another problem that the computer does not start (the system does not start) may be due to the fact that the bootloader and the records of the corresponding sector are damaged. The solution to this situation will be discussed a little later. But in the simplest case, you can try to restore disk data using Recovery utilities.

Sometimes changing the settings of the primary BIOS input/output system also helps. Here you need to find the section related to setting up the hard drive, and in the SATA configuration parameters, deactivate the use of AHCI mode.

Finally, the hard drive may also have purely physical damage, and this cannot be done without outside intervention.

Using the installation disc

Many users clearly underestimate the help that an installation or boot disk with a system image can provide in solving problems associated with situations when the computer turns on, but the operating system does not boot.

Firstly, almost any kit includes a so-called recovery console, with which you can eliminate many software failures, and secondly, you can use the command line here. This, by the way, is the most effective method. Next it will be clear how this works.

Problems with the BOOTMGR bootloader

It is believed that the most common problem when the computer turns on, but the operating system does not start, is damage windows boot loader(Boot Manager). In this case, the system just writes that there is no system partition (it simply does not see the hard drive).

You can fix this problem by starting from the boot disk and going to command line in the recovery console, which can be opened by pressing the “R” key. Next, you need to first use the check disk command and then fix (restore) boot records.

The whole sequence looks like this:

chkdsk c: /f /r;
Bootrec.exe /FixMbr;
Bootrec.exe /FixBoot.

After entering commands, punctuation marks are not placed, but the enter key is pressed. If for some reason executing these commands does not have a positive effect, you can alternatively use a complete rewrite of the boot sector, which is performed by the Bootrec.exe / RebuildBcd command. If the hard drive is not physically damaged, this should work, as they say, one hundred percent.

You can also use some third-party utilities. The most suitable program seems to be a tool called MbrFix, which is included in the Hiren’s Boot CD. After calling it, for example, for Windows 7, provided that this particular system is installed, and only on one disk (there is no partitioning), you should write the following:

MbrFix.exe /drive 0 fixmbr /win7.

This will save the user from having to make changes to boot records, and the boot will be restored.

Problems accessing the NTLDR file

When a message appears that a given component is missing from the system, a boot commit is first applied, as in the previous case.

However, if the result is not achieved, you will need to copy the original file to the root of the system partition. For example, if the drive is "C" and the drive is "E", the command would look like this:

E:\i386> copy ntldr C:\ (after copying, the system will boot without problems).

Damaged or missing HAL.dll file

If the computer turns on, but the operating system does not load in normal mode, the reason may be damaged component HAL.dll (a notification may be shown on the screen).

In this situation, you need to boot the system in safe mode, call the command console and write the following line in it:

C:\windows\system32\restore\rstrui.exe (then press the Enter key and restart).

Instead of a total

Here is a brief summary of everything that concerns solving the problem of the inability to start the operating system. Naturally, the issues that the cause could be low power, CMOS battery failure, loose cable connections, dust inside the system unit, or other malfunctions were not addressed here. But in software terms, the above methods work flawlessly.

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What to do if your computer won't boot

The first step is to establish the cause of the malfunction. If the situation is such that the computer turns on, but then the operating system (OS) itself does not load, then naturally you need to dig towards the same OS.

And if the situation is that the computer does not even turn on at all, that is, it shows absolutely no signs of life, then the situation can be much worse.

A few recommendations on what to do if your computer won’t boot!

For the first case (when the computer turns on, but the OS itself does not boot).

Here, as a rule, the problem is with system files, or their damage or complete loss. Try using the tips below, all tips are given for Windows XP:

Use the “Load last known known configuration (with working parameters)” option. You can use it as follows: after turning on the computer, press the F8 key, a window will appear, and in it select the above-mentioned menu item.
Enter safe mode and try to restore the computer to its previous state. To do this, when you boot the computer, press the F8 key (as in the previous paragraph), select “ Safe mode"If the system boots, go to the following path: Start -> All Programs -> Accessories -> System Tools -> System Restore. And following the wizard's prompts, try to restore an earlier working system.
If the previous methods did not help, then I suggest you familiarize yourself with another option. This option will return your computer to working order with a 99% probability. What do we have to do? You just need to update the old system. To do this, you will need a boot disk with Windows XP. Insert the disc into the DVD-ROM, reboot, it should boot from the CD, for this you need to set the appropriate item in the BIOS, or you can call up the boot option menu with the F12 key when booting the PC and select boot from CD/DVD-ROM, but This method may not be suitable for everyone. After booting from the CD, select " Windows installation XP" following the prompts. When a window appears notifying you that a previously installed OS has been found, press the R key. Thus, the program Windows installations will update the existing copy. Wait until it finishes and try to boot normally.

For the second case (when the computer does not turn on at all).

In fact, there can be a lot of reasons for this, and it can sometimes be very difficult to help in absentia in this case. And, as a rule, the reason is a malfunction of some device (motherboard, power supply, RAM, etc.). At home, especially for an inexperienced user, there is simply no way to check the functionality of a device by replacing it with a known working one. But there is a way out, although not 100%.

First, try resetting the BIOS. To do this, you need to remove the battery for a few minutes. Or close the jumper contacts to reset the BIOS. Look for a jumper next to the battery labeled Clear CMOS (possible designations: CCMOS, CL_CMOS, Clear RTC, CRTC, CLRTC, CL_RTC). If it doesn't help, read on.

Second. It is necessary to disconnect ALL devices on the computer, leaving only the motherboard connected. That is, we take out the video card, all RAM slots, disconnect the hard drive and DVD-ROM, if any, from power additional devices(internal modem, sound card etc.) we take them out too, leaving only the motherboard connected to the power supply.

And now we try to turn on the computer, if it turns on, then the problem is in one of the disabled devices. Turn off the computer and try to connect the devices ALTERNATELY, checking the computer for functionality. Connect the most first important devices(video card, hard drive, RAM), and then secondary ones.

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