Bootable flash drive ntldr is missing. NTLDR is Missing in Windows XP, what should I do? Boot partition "is no active"
Almost everyone had a similar error, but not every user of a computer or laptop can fix it. The most popular solution is formatting hard drive and installing a clean operating system. This method has two big disadvantages: the loss of all accumulated data and the loss of time. In this article, we will consider not complex, but at the same time effective ways.
While loading OC you get a warning:
NTLDR is missing
Press CTRL+ALT+DEL to restart.
Consider the main causes of the error:
1. A large number of files in the root of the system disk - in Windows folder. Because of this, there is a strong fragmentation of the MFT table of the root folder. If the MFT table of the root folder contains a large number of files, it can become so fragmented that an additional placement index needs to be created. Since the files are listed in alphabetical order in the allocation indexes, the NTLDR file may end up in the second allocation index. This will display an error message.
Basically, the data is not copied to the root folder. Specified problem will appear if a program constantly creates and deletes temporary files.
2. Conflict of loaders of heterogeneous systems (Windows and linux) installed on the same computer.
3. NTLDR Boot Loader Ntldr and Ntdetect.com can be deleted or corrupted due to user actions or errors due to various reasons software.
4. The error message "NTLDR Is Missing" may appear after changing the active partition. For stable performance Windows bootloader it is necessary that system files, which he uses, were located on active section.
5. I want to note that the error "NTLDR Is Missing" can be not only software, but also hardware. This and the failure work hard disk, and obsolete BIOS version on the motherboard (extremely rare, but it happens), connecting another disk with an existing OS to the computer.
6. As well as other occasions that are less popular.
Troubleshooting:
First decision. If you or a good neighbor has a computer with the same operating system, you can copy the Ntldr and Ntdetect.com files or use the Windows Recovery Console.
If there is no computer, then you can copy these files using programs: Windows LiveCD, Linux LiveCD, or other programs (for example, such as Acronis Disc Director, etc.) that can work without an operating system, booting from the BIOS by setting boot from CD-ROM.
Second solution: In the system file, the boot.ini file (Location: c:\boot.ini - is hidden by default, so you need to configure Windows to show such files.) check that the path to the operating system is correct. To fix it given file, you can also boot using the programs that are written in the first solution.
The structure of the "Boot.ini" file with one operating system on the disk should look like this:
timeout=30
default=multi(0)disk(0)rdisk(0)partition(1)\WINDOWS
multi(0)disk(0)rdisk(0)partition(1)\WINDOWS="Windows XP Professional" /fastdetect
Third decision. Each PC user must have a distribution kit with an operating system that is installed on his computer. The method below is rightfully considered the fastest and easiest.
Insert the disk with your operating system (Windows XP in my case) into the drive, and do not forget to set the priorities in the BIOS - CD-ROM. After booting from the disk, press the R key to open the recovery console.
Now we will restore. If one OS is installed on the computer, then the following text will appear:
1: C:\WINDOWS
In which a copy of Windows should you sign in?
Type 1, press Enter.
A message will appear:
Enter administrator password:
If your account password has not been set, just press Enter.
- Now enter the fixmbr command and press the Enter button.
- A notification pops up:
**WARNING**
This computer has a non-standard or invalid master boot record. Using FIXMBR can damage the existing partition table. This will result in the loss of access to all partitions of the current hard drive.
If there are no disk access problems, it is recommended to abort the FIXMBR command.
Are you confirming the writing of the new MBR?
- Enter the letter Y (yes, yes) to confirm and press Enter.
- The message appears again:
A new MBR is made to the physical disk \Device\Harddisk0\Partition0.
The new master boot record has been successfully made.
- After the system prompt appears: C:\WINDOWS>
- Type fixboot and press Enter.
- After that, a message will appear:
Destination partition: C:.
Do you want to write a new boot sector to the C: partition?
- Enter the letter Y (yes, yes) and press Enter.
- A message will appear:
The file system on the boot partition is NTFS (or FAT32).
The FIXBOOT command writes a new boot sector.
The new boot sector has been successfully written.
- The system prompt C:\WINDOWS> will appear
All that needed to be done, now you can exit the recovery console, for this, enter the exit command and press Enter. After that, the computer will reboot.
Do not forget to remove the boot from the CD-ROM in the BIOS by setting the boot from the HDD (hard disk).
The fourth solution is for older computers. Parsing system unit(this is not so scary, you will only need a screwdriver) and replace the cable slot or connect a new cable.
This is what the hard drive cable looks like: 
If you have any questions about the article or have not solved your problem, then go to our computer forum and we will definitely help you.
Quite often, when you try to start the operating system, the message “NTLDR is missing” appears, after which it is proposed to restart the boot by pressing the key combination Alt + Ctrl + Del.
ntldr is missing error on boot
If several boot attempts do not lead to a positive result, it is necessary to say that with a probability of up to 50% the system files are damaged and the surface of the hard disk itself is damaged by 50% - there are damaged or bad sectors where these files are located. In this case, the system can sometimes even boot, but subsequently the whole story repeats itself again.
In order to get rid of the error, you must first diagnose the condition of the hard disk surface for bad or damaged sectors using specialized software, such as MHDD or Victoria.
Hard disk check
If there are a large number of them, you need to think about full formatting in the future with the exclusion of these sectors from work, but for now, start the system in order to copy important folders and files to another drive with minimal effort.
If the diagnostics did not reveal any problems, it is worth checking the system also for the presence of malicious code in the system, since very often various viruses Erase the boot files, which leads to such an error.
You can do this by connecting your hard drive to another working computer, or by booting from a bootable USB flash drive or disk that has a built-in antivirus.
When booting, the MBR is read - the main boot record, which scans all hard drives for the presence of a partition that has the “boot” flag, which indicates that it includes a boot partition and a system loader, to which all control for starting the operating system is transferred in the future.
On operating systems from Windows Vista instead of the root NTLDR, Winload.exe is used, which is located in the System32 system directory.
In order to restore the boot sector and boot record, you will need boot disk or bootable flash drive with the version of windows that you have installed.
In windows XP, you need to press R as soon as the blue window appears with downloading files.
The recovery console will launch. There you need to select the number that stands opposite your boot partition. Next, enter the commands in sequence:
Restoring the boot sector and boot record in windows xp
In windows 7 and above, during boot from installation media and a window appears with a call to install the operating system in the lower left corner, you need to click "System Restore".
Entering system recovery windows 7
Command line launch
Recruiting at the beginning bootrec.exe /FixMBR , and then bootrec.exe /FixBoot.
Restoring the boot sector and boot record in windows 7
If this does not help, but the reason for the Ntldr is missing error is probably an erroneous change in the active partition. To fix it, you need to go to the console in the ways described above.
Enter the command in the console diskpart. Next command list disk, which will display a list of connected hard drives in the computer. If there is only one disk, then enter the command select disk 0.
Next, display the list of partitions with the command list partition. A list of all partitions on your hard drive will be displayed. We are interested in the system. It is usually the first one on the list. We select it as a team select partition 1. And then enter the command active, which will make it active again.
Change active partition
In some cases, you may need to edit or add the "boot.ini" file, which contains the name of the operating system and the location (disk) of the system files. Basically, operating system will boot without it, except that during boot the system will swear at its absence. But if the file is incorrectly compiled, the system will not boot at all, so editing it must be approached very responsibly.
Example configuration file"boot.ini" for the corresponding system can be easily found on the official Microsoft website in the technical support section.
What to do with the NTLDR is missing error? It's pretty frequently asked question, since it happens quite often among users of operating Windows systems XP and Windows 10/7?
It may occur while working with a computer.
After the reboot, it says: NTLDR is missing and the operating system does not turn on. It is also impossible to boot into a safe environment or bypass an error during the OS power-up process.
The line after the error field prompts the user to reboot the device using the Ctrl->Alt->Delete key combination. However, this does not help.
After trying to reboot, the error appears again and again.
Consider the causes of the problem and effective ways to fix it.
Causes of an error in the OS
Before describing all sorts of reasons for the failure of the OS, it is necessary to decipher the information that the error code carries.
In our case, NTLDR is a regular operating system loader. Literally, the abbreviation can be deciphered as New Technology Loader.
Once the problem area has been identified, you can proceed to more detailed work with the error.
Among the reasons for the appearance of NTLDR is missing are the following:
- Fatal error (fatal error) in the operation of the hardware components of the system. Maybe, HDD not connected to system or controller motherboard broken;
- Another hard drive was connected to the motherboard;
- You may have more than one operating system installed on your computer. In this case, a conflict may occur between them and, as a result, the computer will not boot;
- In the process of incorrect installation of programs, the files of the NTLDR installer could be damaged;
- The system's active disk has been replaced.
Troubleshooting without reinstalling the system
Reason 1. If you are using old computer, then the hardware components are most likely damaged. Disconnect the hard drive from the motherboard and check it for any faults.
The easiest way is to connect it to another PC and check if it works.
If the device is still defective, the only way out is to replace it.
In the case when the computer does not respond to other hardware components, it is also necessary to replace the device's motherboard.
Reason number 2. According to this reason, this error appears due to a conflict between two hard drives.
Most users, after connecting another disk, do not prioritize use.
The bootloader of a new hard drive cannot access NTLDR system files during the OS boot process.
Follow the instructions to resolve this issue:
- After the error appears, restart your computer;
- In the first five seconds after starting a new boot, go to the BIOS menu;
- In the BIOS window that appears, find the tab in which the order of using the system's hard drives is set - Hard Disk Boot Priority;
- Using the up and down keys, put the first hard disk in first place;
- Press the F10 key to save your changes.
After the done actions, exit the BIOS menu, restart the computer and wait for the operating system to load.
Reason 3. This cause is resolved as follows:
- Find the drive you used to install the operating system. It can also be a flash drive, you need to write the OS installation image to it;
- Boot from a connected drive;
- If you are using Windows XP, press the R button immediately after the inscription appears: " Installing Windows". The following window will appear;
- This window is the standard recovery console. Click on the number that means the boot partition and enter the fixboot and fixmbr commands in turn (via Enter);
- Users of the seventh and newer versions of the Windows OS, after the Install button appears, must click on the OS recovery field, as shown in the figure below;
- In the window that appears, select the command line utility;
- AT command line write the bootrec.exe /FixMBR command and the bootrec.exe /FixBoot command through Enter. After all commands are successfully executed, close the utility.
Advice! Another way to solve the problem is to disable one hard drive after copying the installer system files. Then they need to be copied to a second hard drive. Connect both drives to the motherboard again and reboot the system. Now boot mode will be able to find the necessary system files.
Reason 4 are corrupted installer files. In most cases, they are damaged due to the functioning of malware or other types of viruses.
Also, the files could be deleted by the user himself.
To get the system up and running, you need to recover previously lost files. This can be done using the solution to reason 3.
Notice! If the cause of the problem is a virus, after issuing the fixmbr command, there is a possibility that the main partition table of the hard disk will be damaged. First you need to scan the disk for viruses. You can do this by connecting it to another computer.
Reason 5. The solution is that the user must change the system's active disk. Enable the Recovery Console as described in the previous instructions in this article.
You will also need the DiskPart program. It is preinstalled in Windows OS.
At the command prompt, type diskpart and press Enter. The utility will start.
Hello everyone, dear friends! Today I tried to turn on my computer, but it didn’t work, some incomprehensible inscription appeared something like this: “NTLDR is missing”, I don’t even have a clue what it is and why my computer stopped booting. I have a lot on my computer. important information Have I lost everything now? Help me please!
It is precisely such letters that have recently begun to come to me on my email from many users, with a plea for help. Well, let's figure out what actually causes the appearance of such an inscription when the operating system tries to boot successfully.
An error - NTLDR is missing of this kind occurs extremely rarely, but not every user can cope with it. The first thing that comes to the mind of the user after several attempts to reboot is reinstalling the operating system (OS). This is long, and sometimes unprofitable, because on system drive can be important files. In today's article, I will tell you how to deal with the error without reinstalling the system. Methods are suitable for everyone current versions Windows (XP, Vista, 7, 8, 8.1, 10).
And there are several reasons for the appearance of "NTLDR is missing":
- corrupted boot files of the system;
- conflict due to the installation of another OS;
- installation additional hard disk;
NTLDR is missing What to do?
Hardware failure.
Reasons #1 and #2 - Boot File Corruption
So instead of Windows boot the error "NTLDR is missing" appeared. In the event that an error appears due to damage to boot files or a conflict between two systems, these methods will help you. Check if you have a Windows installation disc or flash drive that is in this moment is on the computer.
If there is no disk, then check out the following article, from which you will learn how to create such a disk or flash drive:
If the cherished flash drive or CD / DVD is present, then the sequence of actions for Windows Vista, 7, 8, 8.1.10 is as follows:
1. We restart the computer and insert the disk or USB flash drive.
2. Now we need to set the boot priority from the media, and not from the hard drive. To do this, you need to go into the BIOS and set the "boot priority" on CD-ROM or USB. Almost all modern computers you can get to the "Boot Menu" without going into the BIOS. Try pressing F8/F9/F10 during boot. Then if it didn’t work with “F8”, then reboot and press “F9”. You can read more details
3. If the priority is set, then the download will already be from the disk. We are waiting for the installer to perform automatic operations. The installer will offer you two options: install new system Or restore the current one. Select "Restore current" and wait for completion. Done, problem solved.
Note for Windows XP users.
We carry out the first two points of the instruction located above. As soon as the installer starts, we immediately start pressing the "R" button - do not be afraid to overdo it. You will be given a list of OSes that need to be restored. Choose desired system(for this, the installer may ask you to press a number and Enter) and confirm your actions with the "Y" and "Enter" keys. Last action is a set of commands FIXBOOT and FIXMBR- the procedure is shown in the screenshots below.
What if the above actions did not lead to a positive result?
If the commands did not return the files, then you need to go the other way - using the same recovery console. Our task is to copy two files from your boot Windows disk. Using the "copy" command, transfer the files "NTDETECT.COM" and "NTLDR".
To do this, you need to register this in the recovery console: copy
where
Actions on the command line will look like this:
copy f:\i386\ntldr e:\
copy f:\i386\ntdetect.com c:\
In commands, "f:\" means the letter of your Windows boot drive;
"c:\" is the address of the drive where the operating system is located.
Perhaps you have it on drive "d", and not on "C" - fix it. Also the name of the CD/DVD may be different. Check this data and write two simple commands - the problem will definitely be solved.
Reason #3 – Active Disk Change
After installing an additional hard drive, the error most often occurs due to incorrect user actions. The already familiar recovery console will help fix the situation and standard utility"DiskPart", which is launched using the command diskpart on the command line.
When the utility starts, proceed as follows:
Enter the list disk command - you will see a list of hard drives that are connected to the computer.
If only one disk is present, the program will display disk0.
We need to enter the command "select disk 0" to select the disk with the operating system to boot.
After selecting the disk, we drive in the “list partition” command to display a list of partitions on the disk.
We select the partition with the operating system, it is most often signed "select partition 1".
To complete the procedure, enter the command "active". Done, the partition with the operating system is again the main one - reboot and use it.
Reason #4 - hardware failure
If the instructions above did not help, then there was a hardware failure. personal computer. The hard drive or the motherboard controller, which is responsible for the operation and recognition of hard drives, can fail. Most often this problem occurs on older hardware. But still, if a breakdown occurs, then there is usually only one way out - replacing the faulty equipment. In some cases, craftsmen repair or replace only the failed item.
Concluding the article, I would like to add that if the problem still turned out to be damaged files boot, and the disk with Windows is not found, then you have to go for another. The main thing is that the version of the operating system on the disk matches the Windows installed on your computer.
That's all for today, how do you like the article? If you have any questions wishes, then ask them in the comments!
There are situations when, when booting a computer, instead of the usual boot of Windows XP or Windows 7, the user sees a black screen with an error NTLDR is missing Press CTRL+ALT+DEL to restart.
NTLDR is boot file operating system versions Windows families. For Windows startup XP or Windows 7 requires three files to be present on the active hard drive partition: the NTLDR file containing the boot loader code, the boot.ini file containing the commands to generate the system selection menu and options for starting it, and the ntdetect.com file.
If for some reason one of the files is missing or there is no access to them, the operating system does not boot and gives the error "NTLDR is missing, Windows cannot start due to hardware disk setup errors."
It is quite logical that in order to restore a stable Windows work XP or Windows 7 need to restore the bootloader. We will tell you how to do this in our detailed instructions.
NTLDR is missing - Instructions for solving the problem.
To restore the bootloader, we need to first launch the recovery console. To do this, we need to boot from installation disk Windows XP and run the installation.
To do this, you need to install the boot from CD-ROM in the BIOS, place the boot disk with the installation Windows package XP and reboot. When windows installer upload your files to RAM computer, a dialog box will appear. Windows installation XP.
