Download fast virus scanner. Instructions: how to check a laptop for viruses without antivirus

Greetings to all readers of the blog site. Have you ever had a situation where the computer does not work the way it always does? It takes a long time to load and programs open slowly. The solution to the problem could be online check computer for viruses without installing additional extensions. Consider the most popular ways which may be of use to you.

Why check

Have you ever had a situation where the antivirus does not find threats, and the laptop suddenly starts to work slowly and messages of dubious content appear? By the way, in one of my recent posts I wrote,.

This behavior is associated with the appearance of a program with malicious code in the system. The installed antivirus does not find it and cannot remove it from the computer because it is a program. This is where special services come in handy. Use them, especially if you notice that the computer is not working properly.

But before working with them, pay attention to the following:

• During operation, an additional module or extension is loaded that communicates with the anti-virus database using the cloud;
• Do not use unknown services, in one of my previous articles I wrote about . If you are in doubt, look for advertisements. Manufacturers of quality software make money by selling products, so they will not place “dubious” advertising.

Important! You will not be able to protect your computer without anti-virus software that has access to all files on the HDD.

How to check in Dr.Web

it effective method. Let's look at why. This is the first antivirus created in Russia to offer such a method of checking. In addition, he offers:

By clicking on the link online.drweb.com check url - address, or file. For this, no additional modules need to be loaded on the HDD. In a special form, add the document that you want to check.

After downloading it, click on the "check" button.

Important! To ensure the security of your information in real time, buy full doctor web . The method described above is used only for one-time diagnostics.

How to check in ESET

It is a free tool for efficient removal of malicious code. Located at: esetnod32.ru . He can:

• scan documents without installation;
• detects all types of threats;
• delete malicious code from the register.

If you use Explorer, you do not need to download and install additional programs. For other browsers, download and run the application with the "exe" extension that the system will offer. After downloading the scanner, click on the "run" button.

How Kaspersky online scanner works

This free utility available at kaspersky.ru . It is able to identify common threats. The work takes place using cloud technology. This will shorten the time it takes to scan. Also, the developers of Kaspersky took care of users working on Mac. An additional protective component has been released for them.

Important! The scanner works correctly with antiviruses installed in the system. It does not remove the code, but only reports it. After checking, you will have to delete everything yourself.

Working with the Virustotal service

It belongs to Google. Checks files for malware. To get started with it, go to virustotal.com . A form will open where we indicate the link to the blog, or select on the HDD necessary files. Next, click on the "Check" button.

Important! Anti-virus databases are regularly updated in automatic mode, so Virustotal will find all the latest viruses.

Conclusion

We reviewed services for checking a personal PC for viruses. They check files and pages for free and look for malware in them. Use them even if you have an antivirus installed. Use the service from Doctor Web and you will not have any difficulties with the treatment of files. If you use it together with a full-fledged version of the antivirus, your computer will be reliably protected.

Kaspersky Virus Removal Tool / AVPTool- a popular free anti-virus scanner (without a signature database update module) from Kaspersky Lab (Kaspersky Lab). Protects your computer from viruses, Trojans & spyware and other unwanted software.

The latest version of the antivirus utility AVPTool has the following functional features:

• installation on an infected computer (including safe mode windows);
• it is possible to start from a USB flash drive (flash drive);
• simple user interface;
• in "mode" Automatic check" - search for malware by signature databases / heuristic analyzer / search for software with known vulnerabilities that weaken the overall level of system security;
• in "mode" Manual treatment" – collection of information about the system / interactive creation and execution of special treatment scripts;
• conflict-free with established antivirus programs and etc.

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If the antivirus installed on your computer does not detect anything suspicious, but there are symptoms (freezes, incomprehensible running processes, autorun.inf appearing on flash drives, etc.), a “one-time antivirus” is necessary. It is easy to handle it - just download the link and run it. At the same time, it is advisable to disable the antivirus, which is installed on a permanent basis, for the duration of the scan.

Advantages of disposable antiviruses

1. Free. For home use Almost all disposable antiviruses are free.

Flaws

1. They are not able to protect your computer all the time (there is no module for real-time protection) and there is no anti-virus database update.

2. You have to download it again every time so that such an antivirus detects new viruses.

Dr.Web CureIt!

Dr.Web CureIt!- a good disposable antivirus. Knows how to deal with running viruses (does not allow himself to be killed during a scan).

HerdProtect

An online antivirus that scans all computer files with 68 antivirus databases. How to use it, told in a separate article

it a good option if unlimited internet is connected.

Minus: does not know how to disinfect infected files.

A plus: You don't need to redownload to check, the databases are always fresh.

Kaspersky Virus Removal Tool

ESET Online Scanner

Plus Online Scanner - no need to worry about downloading new versions with fresh databases. Just open the link or run esetsmartinstaller_rus.exe, the antivirus will start, update and scan your computer for viruses.

Norton Security Scan

Norton Security Scan- Another one-time antivirus. You can download The interface is in English, but simple.

Checks hard drives very fast. Requires an internet connection, like Eset Online Scanner.

When you first start it creates a shortcut to itself, which is strange.

In general, it is better not to use it, since viruses common in Russia get into its database too late. The newest winlockers (ransomware banners) are unlikely to be detected.

AVZ or Zaitsev Antivirus

Powerful antivirus utility (not a full antivirus!) for advanced users. Functions are not the sea, but the whole ocean.

Not all users install an antivirus on their computer or laptop. Some are lazy, others don't see the need for it. And when suddenly the PC starts behaving strangely (buggy and slow or ads appear in the browser), you can simply check your computer for viruses online and for free. Luckily, there are plenty of options today.

Below are the top 7 antiviruses that can scan for viruses online. True, it will not work to check the computer without downloading the installer. Virus scanning is done online, but antiviruses need access to your files. Therefore, some of them are installed as a module for the browser, and some - as a small utility.

Kaspersky Security Scan is a powerful online virus scanner

A full-fledged antivirus is well known in Russia, and its "younger brother" is also popular.

The program runs in the "cloud", so you can quickly scan Kaspersky for viruses online any PC or laptop.

Its main advantages:

• does not slow down Windows work(which cannot be said about the full-fledged Kaspersky antivirus, which “eats” a lot of resources during the scan);
• does not conflict with other antiviruses installed on the computer;
• does not remove the viruses found, but only reports them (on the one hand, this is a plus, but on the other, you will have to remove them manually);
• produces a detailed report.

1. Download the installer file from this link http://www.kaspersky.com/free-virus-scan.
2. Run the program.
3. Wait for the end of the check.

After that, you will only have to remove the viruses (if they were found).

BitDefender QuickScan - quick online PC virus scan

Another way to clean your computer from viruses online is using BitDefender QuickScan. It is considered to be very effective and enjoys great success abroad. Approximately, as we have Kaspersky.

Cleaning your computer from viruses online is also easy. You only need:

1. Follow this link http://quickscan.bitdefender.com/ .
2. Click on "Scan Now".
3. Install a browser module through which the antivirus will gain access to your folders and files.
4. Wait for the end of the check.

The main advantage of BitDefender is quick check for viruses in online mode. On average, it takes 1-2 minutes. On the one hand, this is cool, but on the other hand, what will he have time to scan in such a short time?

Most likely, the online scanner checks the main list of the most common threats: system files, autoload - i.e. those places where viruses mostly "live". The developers themselves say that online virus scanning of a computer is carried out in the cloud (on their servers), which is why it is so fast.

ESET Online Scanner - efficient computer virus scan

The next way is using the free ESET product from the NOD32 developers. To start checking, follow this link.

PC scan is recommended to be performed via Internet Explorer– in this case, the check will be performed in the browser window. When using Chrome, Firefox or Opera, the user will have to download a small file, and the PC analysis will be performed in a separate program.

After downloading and running the file, you need to set the settings. For example, enable scanning of archives and potentially dangerous programs. You can also uncheck the "Remove threats" box so that the antivirus does not accidentally delete important files that it thinks are infected. Then click the "Start" button.

ESET Online Scanner will update the databases, after which an online scan of the PC for viruses will begin.

• thorough system scan (takes 40 minutes on average - depends on your Internet speed and HDD size);
• detects any threats;
• can detect malware, incl. in the register;
• performs heuristic analysis;
• generates a complete report on the work performed.

Another plus is that the online scanner is automatically deleted after the scan is completed. That is, no files will remain after it.

In this way, ESET antivirus- probably from better ways clean your computer from viruses online. Its only drawback is the need for installation.

Panda Cloud Cleaner - online scan of a flash drive for viruses

There are 4 versions to choose from:

• standard;
• portable (does not require installation);
• for USB scan flash drives;
• in ISO format (emergency boot disk to check for viruses on a PC that does not turn on).

Which version to choose, decide for yourself. For example, if you want to check a flash drive for viruses online, then download the third installer on the developers' website.

Main advantages:

• quick check (on average - 20-30 minutes);
• detection of common threats;
• effective online virus cleaning.

As in the previous case, Panda also "self-destructs" after successfully checking and treating viruses. That is, it is automatically deleted and leaves no files behind.

F-Secure Online Scanner - virus and spyware treatment

Another great antivirus that can scan your computer for viruses online. To start testing, go to the developers website and click on the "Run" button. After downloading and running the installer, a new window will open, in which the laptop or PC will be scanned.

The main advantages of this antivirus:

• quick scan - takes an average of 10-15 minutes;
• effective treatment of viruses and spyware utilities;
• works even when installed antivirus on your PC.

Before starting the test, it is advisable to turn off "heavy" programs. This will help speed up the scanning process.

VirusTotal

All previous options had one thing in common - the need to download the installer. In this case, you can scan your computer for viruses online without installing any programs.

VirusTotal is a service from Google that can check any files on your PC. It can also scan websites for malicious utilities. Using the service is very simple:

1. Follow this link.
2. Specify the path to the file you want to scan, or the URL of any site.
3. Click the "Check" button.

Wait for the verification to be completed, and then see the report.

You won't be able to check all the documents on your computer through VirusTotal. It can scan sites and files separately. This option is suitable for those who, for example, have downloaded some program and want to make sure that it is free of viruses before installation. For such cases, VirusTotal is best suited, because it does not need to be downloaded.

Dr.Web - effective file check for viruses

And last way– via Doctor Web. He has an excellent service with which you can check individual files. For this:

1. Go to this site http://online.drweb.com/.
2. Click Browse and navigate to the file you want to scan.
3. Click the "Check!" button.

In this case, you can scan your computer for viruses online without installing Dr. Web. But, like VirusTotal, Doctor Web can scan only one file at a time.

A few words in conclusion

It sounds strange, but you cannot completely scan a laptop or computer and remove viruses online. The first 5 antiviruses require a small file to be installed. The question arises: isn't it easier to install a full version of the same Kaspersky or BitDefender? They have more features, plus provide real-time PC protection. Moreover, many popular antiviruses there are free versions.

The last 2 options are VirusTotal and Dr. Web - do not require installation, but check one file at a time. This is also not very convenient.

By the way, a computer or laptop can be infected not with viruses, but malware. As a result, ads appear in the browser, third-party pages of unknown sites open, etc. In this case, antiviruses will not help, special software is required here.

Malware- software that gains unauthorized access to PC resources or user data stored on it. Such mini-programs are malicious because they are downloaded and installed unauthorized, interfere with the operation of applications, run offline, monitor user activity, in some cases stop antiviruses, firewalls and send data. But malicious software or "malware" is wrong to call viruses in the full sense of the word, this is mini software that pursues its "malicious" goals.

Such programs, secretly sneaking onto a computer, are often not identified by antiviruses, and in some cases even deactivate its operation. And it's very hard to get rid of them. But there are special software methods, allowing you to remove Malware.

Or on websites - an actual problem that is not so easy to solve. We will tell you how to remove ads using one of the programs. But before you follow our recommendations, stop running browser extensions, up to trusted ones, and look at the result. You may not need utilities. And if the method didn't work, read on.

Microsoft Malicious Software Removal Tool

If your PC runs on the operating system itself latest version Microsoft, "top ten", you can use the already pre-installed by the developer special utility. This program monitors the system automatically, but it can also be run and manually. The program is located in the system, hidden section C:\Windows\System32\MRT.exe. An application from an official manufacturer is inferior in efficiency to programs that are installed from outside. But you can still run it and check your computer.

After starting, you will see a wizard window with support for the Russian language. All you need to do while the utility is scanning is to press the "continue" button in time. The process of detecting malicious software using this utility is quite lengthy, so wait until the end.

If the PC has licensed Windows 10, the malware detection tool is official, i.e. developed by Microsoft itself. And this means that you can use this method absolutely safely, without fear that the program will delete important file. If there is no pre-installed software on the PC, it can be downloaded separately on the official page of the OS developer.

AdwCleaner

AdwCleaner is the most effective tool that will rid your browser of adware and clean your computer of unnecessary malware applications. If you are tormented by pop-up adware, you open in automatic mode extraneous pages when surfing and an unnecessary start page is installed that cannot be replaced, the utility from Xplode will help you cope with all these problems.

Why do we recommend AdwCleaner? This program is absolutely free, created with support for the Russian language, does not require installation, effectively removes adware and all kinds of malware, constantly improves and distributes free and very useful advice and tips. Yes, when the procedure for checking and removing malicious software and ads is completed, the utility will tell you how to protect your computer from unwanted software.

Even unprepared PC users can use this utility. All you need to do is run the software, click "scan", see the scan results and delete unnecessary programs. If in doubt about the "need" of a particular application, uncheck the box.

If the program that needs to be removed with AdwCleaner is running at the time of the check, the computer will restart.

Download the AdwCleaner utility to your computer only from official page author. AT otherwise you run the risk of getting the same malicious software, only under a different shell. If you have downloaded the software from an unofficial resource, then check it in real time.

Malwarebytes Anti-Malware Free

Anti-Malware is the most requested utility that effectively searches for and removes virus adware and malicious applications.

The program is available in two versions - professional and free, and has Russian-language support. If you used the program before 2015, be sure to update, because a new version improved in terms of efficiency and qualitatively translated into Russian. Free version Anti-Malware is practically no different from a professional one, only some options are missing. And if you use it, it will find and effectively remove malware installed on your PC.

According to some users, the program sometimes skips suspicious software. If you are ready for a lengthy scan, run the Anti-Malware "Free" version.

Zemana AntiMalware

If the first two programs we described above did not remove all malicious applications and adware, download and scan your computer with the Zemana AntiMalware utility. The program positions itself as an anti-virus scanner. In her work, she uses a number of engines and cloud technologies that allow you to find and effectively get rid of modern threats, undetectable by most antiviruses.

The program has Russian-language support and a fairly simple interface. Scans and locates individual program components using cloud technology. At the same time, it has the ability to work in real time without letting malicious Malware and adware into your computer.

Most often, adware appears in browsers, in the form of modules and extensions. The Zemana AntiMalware utility effectively fights this kind of malware by finding and removing them in real time. To use this useful program option, you need to allow checking extensions in your browser. Enable this option in Advanced Settings.

There is one disadvantage of the utility - it is paid. But it allows you to scan your computer for a half month in free mode. Also, to start and further check the computer must be connected to the network.

HitmanPro

The HitmanPro mini-utility is another effective solution for combating malicious software that is installed on a PC without authorization. This utility is able to detect a sufficient number of modern threats, while it will also clean up those elements that were missed during the operation of other programs. A huge plus of this program is also that it will scan your computer in record time, and it does not require installation.

There is one drawback, if I may say so, of the program - it is paid, but you can buy it only after a month. During this time, you can clean the operating system from malicious software. It will cope with the problems of pop-up ads in browsers, and with the replacement start page. At the same time, this utility can work in tandem, completely removing all junk programs and its individual elements from the computer.

Microsoft Malicious Software Removal Tool

Malicious Soft Removal Tool Win is a software mini-utility created by the developer operating system. She finds and removes computer worms Blaster and Sasser, the Novarg mail worm and many other threats that became a real epidemic in their time. The utility works on all versions of the operating system from Microsoft, and is a method supported by the developer. To use the program options, you just need to run it and scan your computer. When the verification procedure is completed, the Microsoft utility will return the results, based on which you can make decisions about removing / not removing certain applications or individual components.

The utility does not make any changes to the registry or OS, so you can safely use it, at least at the first stage.

Spybot Search & Destroy

The utility, positioned as Anti-malware, Antivirus Software, will not only effectively rid your computer of harmful software and adware, but also protect against new threats. A program designed with Russian language support will not only allow you to scan your computer. You can also use its auxiliary options aimed at ensuring the security of your computer in real time.

Immediately after launch, the program will scan the system, find unwanted software, remove it completely or only individual components / elements. And after that, you can protect your computer from new threats. SpyBot-Search and Destroy can also monitor applications already installed on the computer and stop their vigorous activity, attempts to change system files, edit the registry, etc.

It is safe to use the program from the software developer Safer Networking, since its functionality allows you to remove all previously made changes. For example, if the utility removed some necessary component, and this led to a malfunction separate program or the operating system as a whole, you can return everything back.

Here are, in our opinion, the most effective mini-utilities that allow you not only to remove malicious software and adware, but also to protect your computer online from other threats or activity already installed apps. If you need to clean your PC once, use the official utility. And if you need real-time protection, install more effective programs.