More and more often, users are attacked by trojans, malicious files that change browser or system settings, constantly display advertising sites or viral ads. Windows protection It does not always work out, and there is a need to clean your computer from viruses for free. There are several ways to do this.
How to check your computer for viruses
Threats can penetrate the operating system via the Internet, along with someone else’s flash drive or when installing dubious software. The development of anti-virus products has provoked the appearance of more cunning, sophisticated spyware or malicious codes. Now they can be recorded in autoload, automatically restored after deletion. Curing a computer is getting harder. Here are ways to clean your laptop from viruses:
- The most radical, tough way to clean your computer from viruses is to reinstall the operating system. Together with malicious files, files from system partitions or with logical drive. This means that the programs and documents that were on it will be lost. You can save data to other disks, but there is a risk that the infected file lives on them too.
- Formatting a disk. Good wayif you know that the virus is not in section C.
- Return to recovery point without malicious files. The operating system is able to roll back to its previous state, for example, yesterday, when worms or trojans have not yet penetrated into it. Using backup All new files, folders will be deleted and replaced with old ones. Suitable if only system data and directories were affected.
- Use any good antivirus, for example: Doctor Web (Dr.Web), Kaspersky or Nod32. The scanner will detect threats, offer to remove, treat or quarantine them.
Some viruses are not so easy to clean: they open windows in the browser with advertising pages, carry out hidden actions. One of them is blocking the operation of antivirus utilities. In such cases, online services can help with the initial launch of the scan. Here are some popular and effective options:
- BitDefender QuickScan - turns on right on the site online check through a cloud service;
- Panda ActiveScan - a special module will load, which through a cloud service will check the computer for security risks;
- HouseCall - conducts a spyware and virus scan online;
- Microsoft Safety Scanner - a one-time check from the company;
- Kaspersky Security Scan - a computer is being treated for viruses special utility. It needs to be downloaded, but the software works through a cloud service.
The best utilities for cleaning your computer from viruses
To clean the computer, full-fledged antiviruses are better suited, but you can also use special utilities. The best ones are listed below:
- DR WEB CUREIT is a simple free portable utility. You just need to run the program and click "Start Scan". This can take from 1 to 6 hours (according to the number of checked objects).
- NORTON SECURITY SCAN is another additional protection tool that will help clean your computer from viruses. Distributed for free. It works and is accessible to the user online, controls the PC in real time.
- Kaspersky Anti-Virus is a full-fledged program that is distributed for a fee. Exist special utility, which you can download for free - Kaspersky Security Scan.
- AVZ is a powerful, popular utility that allows you to solve even the most complex problems with pests. Very useful in cases when you can’t log in to Windows. Run her in safe mode when booting the system. Current version updated automatically for free.
- ESET ONLINE SCANNER - Another option is how to clean your computer for free from viruses. Installation is not required, you just need to download and run the executable file.
- AVIRA REMOVAL TOOL is not the best option to clean your computer from viruses, but they use it because the utility is distributed free of charge.
- AVAST! VIRUS CLEANER TOOL - additional protection against Avast antivirus. Works autonomously in cloud service. Searches for and removes spyware, malicious files.
- Malwarebytes is a very effective program for removing adware viruses that successfully hide from Kaspersky or Dr.Web. The first month can be used absolutely free, but then you will have to purchase a license.
How to clean your computer from viruses yourself
If you wish and have free time, you can clean your computer yourself. It is recommended at the very beginning to remove everything from the basket, use cCleaner, which will destroy unnecessary and unnecessary information from the registry, all sorts of garbage. The easiest way to clean your computer from viruses is to format it hDD. If it is important to save data on it, you should choose a more complex path using antivirus and special programs.
Cleaning and formatting a hard drive
It should be understood that disk cleaning and formatting are two different things. The first is often carried out in order to free up space on the desired partition by removing garbage, temporary and broken (non-working) files. This action does not directly affect the removal of malicious files. You can execute it as follows:
- Go to My Computer.
- On the disk that needs to be cleaned, right-click.
- Select "Properties."
- In the window that opens below, find the "Disk Cleanup" button and click on it.
Formatting completely deletes the entire contents of the section along with malicious code. Be sure to copy all important data to a temporary medium. To execute, you need:
- Open My Computer.
- Right-click on the desired section.
- Select "Format" in the menu.
- Uncheck the "Quick" item.
- Click the “Start” button.
Using a special antivirus program
Before you remove viruses from your computer, you must enter in safe mode. To do this, press F8 when booting the computer. Before that, you must have downloaded the AVZ program and installed a full-fledged antivirus, for example, Kaspersky or Nod32. When switching to safe mode:
- Launch AVZ immediately.
- Go to the File menu, select System Restore.
- Confirm all the items, click "Run."
- After finishing, go to the "Service" section and click on "Process Manager". Remove anything that is not highlighted in green.
- Go to the “File” menu section and click “Troubleshooting Wizard”. Clean the system.
These first steps on how to properly clean your computer from viruses will help to identify problems in the system, the location of infected files and neutralize them, but not delete them. Need a complete antivirus program. AVZ paves the way for its efficient operation. Select a full test and wait for the results. All threats found must be deleted. If after that the advertisement continues to load, the pages spontaneously open - use "Malwarebytes".
Hello friends! In this short article we’ll talk about how to clean your computer from viruses free and at the same time effective. And we will talk about the case when the infection penetrated the PC with an existing antivirus.
I think that many of you have encountered such a case when, when an anti-virus program with up-to-date databases is running, infection still occurs and strange glitches begin.
And one small but very powerful program called Dr.Web CureIt!It is a kind of healing anti-crisis utility from Russian developers.
It should also be emphasized that it is completely free and does not require installation in the system. That is, this application will not harm your existing antivirus in any way.
At the time of writing, the file itself weighed about 130 MB. Run it:
We will be asked to agree with the license and the transfer of statistics, we do this:
And basically, at this step you can start cleaning the system from viruses by clicking on the "Start Scan" button:
Dr.Web CureIt! will begin its invisible work, at the end of which it will display a list of the threats found:
As you can see in the picture above, by default the program itself does nothing with the detected malware. Therefore, we need to select the values \u200b\u200b"Cure" or "Delete" in the "Action" field and be sure to click the "Defuse" button:
Now, cleaning the computer from viruses has been brought to its logical conclusion. But we considered such an express scanning method. So to speak, on a quick hand.
But this application still has additional settingswhich we will now consider. So, at the initial stage of scanning, you can select the "Select objects to scan" section:
In the window that opens, check all the available items with daws, you can run the test again:
But now it will take much longer, because in this situation the program needs to check more system partitions and directories. You can also select "Click to select files and folders":
Therefore, you can specify only specific directories to scan. To automate malware removal operations, you can click on the key icon and activate the "Automatically apply actions ..." item:
In this case, the program will treat the viruses without user intervention or quarantine them for isolation:
Well, friends, here we are together and we learned a simple way to clean your computer from viruses for free and at the same time very simple. And in the next article, let's talk about removal from the system.
In conclusion, it is necessary to say that the healing utility Dr.Web CureIt! more than once was tested by the author of the article in combat conditions and always showed a good result.
By the way, it is it that is very often used when viruses are detected on computers that block the entrance to social networks VKontakte and Odnoklassniki. But many people simply cannot live without them.
Well, okay, that's all for now and in the end watch a video about cheap show-offs.
From time to time should be fully to clean computer from viruses that could accumulate in the system. Where to start this procedure? To start, we recommend that you boot into Safe mode. To do this, at the beginning windows boot press the key F8. For most devices, this particular key will lead to the boot options window. Select Safe Mode. In it, the OS will start without loading third-party programs and unstable drivers. It is in them that malware can often “sit down”.
If at the same time the computer goes to reboot again, then probably the virus has already tried and damaged system registry. You will need to restore this mode with special programs installed on bootable media.
If it is possible to boot the system into normal mode Open the window Run (Win + R) and enter the command " msconfig». 
Will start system configuration, on the Download tab, check the box Safe mode.
Click To apply and OK to confirm and reboot. 
Clean antivirus
After loading in Safe Mode, proceed with the treatment with your existing antiviruses and antispyware. We describe this process in the most popular and effective.
CureIt Antivirus
You can download CureIt from Doctor Web is free on the official site. 
After downloading and installing, we proceed to the verification. You can spend as complete check so select individual elements, which will reduce the time and, accordingly, the quality of scanning. 
Check all with checkboxes if you want to be checked completely, then click " Run check». 
In the table below, it is possible to perform certain actions with the found infected files. Can him move in the repository (if you do not know what the file is, if you neutralize it later), defuse or skip (if this, for example, is your program and are confident in its security). 
Upon completion of the scan, you will receive a report of how many and which threats are detected. 
Dr.Web CureIt utility perfectly copes with threats, and therefore is highly recommended for use.
Clean Kaspersky
Powerful program russian production. On the site you can download free version with basic functionality. 
Once installed, proceed to scanning. Your actions will be quite simple, similar to working with the previous program, the differences are only in the Interface. Free utility can be used only once.
We use AVZ
This program is distributed free of charge on the manufacturer’s website, where it can be downloaded without problems.
Keep your databases up to date. To update, run File – «». 
To check - click File choose " System Restore". We mark the necessary items and run for execution. 
Then go to the tab Service – « Process manager". Remove processes that are not marked in green. Then File / Search Wizard - “ Perform cleaning operating system ».
Other useful utilities
From other programs, special anti-spies and antiviruses for cleaning ad viruses. An example is the generally paid utility Malwarebytes Anti-Malware. However, there are some useful features that can be used at no cost. 
Software is anti-spy - Great for detecting and removing spyware. Thanks to it, unnecessary windows will not open in the browser, and clicks on dubious links will block.
Scanner Malwarebytes is able to detect even those viruses that are not able to detect more popular programs. However, unfortunately, he does not know how to cure them - all infected files are quarantined, deleted or left in place. Another minus is not scanned archived files. Therefore, its use as the main one is not recommended, but as an additional one - just right.
You can scan the system online, for example, using ESET Online Scanner. There are a lot of different antivirus programs, but most of them are not free and their effectiveness is poor.
How to clear memory
After treatment is complete and viruses are removed, care must be taken to clean up the RAM.
To do this, run. It can be found in the button menu. Startby right-clicking on it (or “ Ctrl + Alt + Del»). 
Finish unnecessary processes on the tab The processes.
Often even a layman can recognize malicious processes. Sometimes they can be represented by an illegible collection of characters or hieroglyphs.
The next step is cleaning autoload on the corresponding tab. Turn off superfluous applications. 
In some windows versions for this you will need to run System configuration (how to launch was described in paragraph 1). 
Finish cleaning
We complete the whole process. empty the basket.
Then we clean junk files
a registry program like CCleaner or RegCleaner. 
Reboot normally.
When you constantly work on the Internet or use unverified storage media, you often need to clean your computer from viruses for free.
The use of paid antivirus programs is not available to all users, and it is impractical and unprofitable to pay to fix the problem that periodically occurs with many users.
Moreover, there are a number of ways that will solve your problem, saving both time and money.
Priority actions
First of all, if a problem occurs (inscriptions appear on the screen that should not be there, the computer runs more slowly, when you open the browser, it goes to foreign pages, etc.), you should ensure safe work a computer.
To do this, a special mode is launched, which is selected on most systems by pressing F8 at boot. As a result, a window of type appears:
After the window appears, select one of the "Safe Mode" options and press Enter. This mainly helps to boot the system.
If the attempt was unsuccessful, it means that the virus also damaged the Windows registry, so now you need to first find the file to restore safe mode, run it from the command line at boot, and only then boot the system.
After that, you can use antivirus programs.
Using antivirus software
Starting the computer in safe mode, you should get an antivirus that can fix the problem automatically by scanning hard drive, search and treatment (or deletion) of virus-infected files.
There are programs with features that you have to pay for. But if you wish, you can find free or shareware (for example, working 30 days and only then requiring payment and registration).
Curelt (Dr.Web)
One of the most popular programs for the use of which you do not have to pay, and searching and downloading on the network will not take much time, is the doctor of the web - more precisely, one of the versions of this antivirus, Curelt.
After downloading and installing the antivirus, you will need to run one of the proposed types of checks. Fast usually takes a few minutes.
Full, depending on the processor performance, the size of the hard disk and other parameters, can take half a day - however, at the same time, you can perform other tasks on the computer.
Advice! If viruses are suspected in the system, you should always choose a full scan.
After many hours of scanning, the screen prompts you to cure or delete infected files.
If the treatment fails, removal will be the only possible way out of the situation - it is easier to reinstall the application than leave malicious code in it and subsequently completely reinstall the system.
Kaspersky Anti-Virus
The next powerful anti-virus tool is the well-known domestic program, which used to be only paid, but now offers a free version. By installing Kaspersky Anti-Virus on your computer, you can immediately scan.
For further free support, you will need to register and gain access to computer protection for a year.
The functionality of the free version is more than sufficient for a one-time removal of viruses. And the control is intuitive even for the user starting it for the first time.
Avz
In order to get rid of malware using this free program, you will need to download it from the manufacturer’s page, and then follow these steps:
- Run antivirus;
- Go to the “File” menu and select “System Restore”;
- Select all items and start their execution;
- Go to the menu "Service" / "Process Manager";
- Remove processes that are not highlighted in green;
- Go to the “File” / “Search Wizard” menu;
- Clean up the operating system.
Other programs
Allowing to get rid of advertising viruses. These include, for example, Malwarebytes - a program whose functions can be used for free.
With its help, unnecessary browser windows will no longer open and transitions to extraneous links will be carried out.
There are several options for checking the system online and getting rid of viruses without downloading programs. One of them is ESET Online Scanner, whose functions allow you to partially restore the system.
Although its capabilities are much less compared to installed antiviruses.
There are some more good and free programs like Avasta, Avira and Microsoft Security Essentials. However, when using them there are several nuances:
- Some of these antiviruses are free only for a certain period (for example, 1 year);
- Their effectiveness is less than that of the programs described above;
- Virus detection is performed continuously, but if the system is already infected and the malicious code is skipped, most free antiviruses are no longer able to detect them.
Memory cleaning
After viruses have been detected or during the system scan, care should be taken to clean the computer's memory, where there may also be unnecessary processes that adversely affect the performance of the system.
In order to detect them, you will need to launch the "Task Manager" (simultaneous pressing of the keys "Ctrl" + "Alt" + "Del"). After that, on the “Processes” tab, you can see all the programs currently working.
Some of these processes can be disabled. Sometimes even a layman can recognize them - malicious codes look like incomprehensible character sets (and even chinese characters).
The main thing in this case is not to accidentally close the processes important for the work, although most often the system simply will not allow this to be done.
To prevent processes from starting when windows startup, you should remove them from automatic loading. To do this:
- Press "Windows" + "R";
- Type in the command "msconfig";
- In the menu that appears on the "Startup" tab, disable unnecessary applications (uncheck).
Basically, this list contains the control programs of antiviruses, instant messengers, as well as some drivers. The more applications it has that the computer owner did not install, the greater the chance of a system infection.
Good day, friends! Often, using the Internet every day, there is a need to scan and clean the computer of viruses. The computer may be infected with malware not only from the Internet, but also from unverified media or disks. Not every user can use paid antivirus software to protect their PC. There are alternative solutions that make it easy clean your computer from viruses for free. In this article we will consider effective ways to remove malicious code from a PC.
After you notice the abnormal behavior of your computer (the PC slows down, when you switch to the browser, third-party pages open, unusual labels appear on the monitor screen, etc.), the first thing you need to do is start the system in safe mode. To do this, when you turn on the computer, just press the F8 key several times to call up the menu of additional boot options,
and then select “Safe Mode” by pressing Enter,
In most cases, the system boots in this safe mode and after that you can start cleaning your PC from virus code. But this does not always help, especially if malware damages the registry of the operating system. In this case, you need to find the file to restore safe mode, open it in command line, and only then try to load Windows.
Using antivirus programs to clean your computer from malicious files
When the PC starts in safe mode, you need to scan hard disks and random access memory a special antivirus program for viruses. Such programs are both paid and free. We will focus on antivirus utilities that are distributed free of charge, or you can use the software in trial mode (usually 30 days free use).Avz
Here is a free antivirus utility that can boast of an advanced control tool, in addition to a standard scanner. In general, the program does a good job of eliminating all malicious files.
To clean your PC of viruses using AVZ, you need to download the program from the developer's site and perform the following steps:
- run the utility;
- go to the "File" menu and click on "System Restore";
- then put daws everywhere and click on the button “Perform marked operations”;
- after we go to the “Tools” menu and click on the “Process Manager” item;
- at this stage, we close all processes that are not green;
- run the “Search Wizard” from the “File” menu;
- we clean the Windows OS.
Dr.Web Curelt
Dr.Web Curelt is an excellent virus scanner for your computer, which is distributed free of charge if you do not use it for commercial purposes. Curelt is essentially a version of the well-known Dr.Web antivirus. This software can periodically scan your PC for possible threats. On my own behalf I will say that of the many situations with infection of computers I used this particular program, and it never let me down.
You can download the link. When Dr.Web Curelt is downloaded, run the downloaded file and select one of two types of computer scan.
A quick check will not take more than a few minutes (I advise you to use this type of scan purely for PC prevention). A full scan will take much longer, as the processor will be maximized. In principle, with any choice, it will be possible to go about their business on the computer while Dr.Web searches for malicious programs.
Recommend:
carry out a full scan when there is a suspicion of virus files.
When the program scans your computer completely, a window appears prompting you to cure or delete infected programs or files. If the files cannot be treated, then there is only one way out of the current problem: delete permanently, so that the infection does not go further.
Hitmanpro
I could not mention the wonderful virus scanner - HitmanPro. I learned about this merciless killer when I infected my computer back in 2013. The virus that "ate" all the resources of the video card, unfortunately, could not be found either by regular antiviruses or by the scanners described above. Having a little poyuzav on forums came across this amazing software. In a few minutes, thanks to Hitman, the virus was found and cleaned, after which the video card began to function as before. So there you are, friends!
After that incident this program helps me out every day. Using HitmanPro together with the Dr.Web Curelt antivirus described above, you can be sure that your PC is completely cleared of malicious files. Hitman’s minus is only one - the program is paid, but if you need to clean a one-time computer, you can register a trial 30-day version absolutely free. In addition, a hacked HitmanPro antivirus is walking on the network, you just need to patch the exe file and use it repeatedly without spending a dime on the license. You can download the utility here
What to do after cleaning your computer from viruses
When the anti-virus system finds and removes all viruses, you need to finally make sure that no virus is left on the hard drive or in memory. To do this, do the following:- Empty the trash and possibly temporary Windows files;
- delete unnecessary programs in the registry branch HKEY_CURRENT_USER / Software by pressing the "Delete" key (I already described in the corresponding article).
That's all! All the best!
