Do I need to install antivirus on Windows

Choosing an antivirus for Windows in 2021 (with Russian support)! TOP 10


The Christmas holidays have arrived and I am (as usual) publishing a note with the most recent antiviruses for this year! I think it is a good “habit” at the beginning of the year to configure and “patch” the system (make a backup).

By the way, on the eve of the new decade I decided to have a look at the statistics of virus population: it turned out that during last 10 years the number of viruses (mainly Malware/Adware) increased 17-20 times! (different sources have slightly different figures)

Well, it turns out it is too early to completely abandon the “protection” and rely only on Windows.

Note : in the list below I have listed the 10 most reliable products (which one is better. I can not say, especially since some utilities are used for different purposes. ).

If you use Windows 10 OS, it should be noted that the built-in protector provides a very good level of protection against classic viruses (comparable with a number of free antiviruses). at least look at AV-tests).

Another thing is that it has quite few functions and options, no protection against adware and malware.


Any self-respecting virus, once triggered, tends to gain a foothold in the system one way or another, t.е. Creates an executable file or library, which in one way or another is injected into the. “Auto” run or in the form of an “add-on” to other executable files (debugger, hander, plugin, etc.д.) is not important. Important: there is a barrier called “code launching”. Even good old viruses writing themselves into executable files should still be able to write into the files which are supposed to run.

Of course, there are viruses which multiply without creating files (e.g. msblast). But the condition for this virus to show up must be that a server is available to access the virus carrier or that the code is run through an exploit in a browser/network component. In case of a hole in the browser, no further propagation is possible (t.к. you need to access browsers on other machines, and this requires raising a server where other users will go and motivating users to go to this particular node). In case of a hole in a network component and its propagation without saving to disk, the technique I described will most likely not work and an epidemic. However, I’m not sure that antiviruses will catch such a 0day exploit, plus, they (holes) are fixed rather quickly, so I postpone this scenario as unlikely. The presence of firewalls reduces their danger even more. The timely (automated) installation of updates is quite a relief from.

So, the main danger in everyday life is posed by viruses launched “from a file” (if only because they survive a computer reboot). If we forbid somehow to launch the “wrong” files, the problem will be solved (i.e.к. a virus which is not saved in a file will not survive a reboot, and if it is started by a user, it will not even be able to survive a banal re-login).

In Windows, there is a technology called Restricted Startup Policy. It can be activated in “deny everything not allowed” mode. If you put a complete ban. for everyone, including administrators, all files, including libraries, then we have an exact guarantee that the extraneous (not included in the list of allowed) file will not be launched. At least I haven’t heard about any holes in this technology yet. Note, it is necessary to ban libraries too, because the infamous configurator is launched from flash drives precisely by running the library by tricking rundll32.

However, bans and permissions have no meaning unless rules are formulated to forbid the launch of “aliens.

About the “arguments” and “myths” (⚡)

Now a few words about the “arguments” made by supporters of “antivirus-free” PC.

1) Windows is safe, it knows what to delete!

If we talk about Windows 10. yes, it is safer than those “windows” that came before it.

But it doesn’t protect from all types of threats. if you don’t believe me, check infection statistics from independent resources, questions on industry forums about different viruses. miners, crypto-encoders, advertising “modules” (built into browsers), etc.д. There are hundreds and thousands of them!

And how many scandals have already happened when some users’ data leaked into the network? I think arguing here is pointless for now: these are all real facts (not just my thoughts).

2) I have been without antivirus for 5 years and everything is OK!

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Again, a lot depends on who, how and for what use PC (I have already mentioned this). Perhaps you will “sit through” more and nothing will happen, or perhaps you will turn on your computer tomorrow and suddenly discover that you cannot find some files.

I wrote about statistics above, and it is not invented. Someone is in it, too?! (Remember! “Trouble comes suddenly”)

And in general, I am very frustrated with a one-sided approach: when a PC user (who has only games on it) starts saying that “this is not necessary”, “don’t do this” and so on.д. And people who have documents on their disk, which cost several times more than the PC they work for, take this into account!

3) Modern browsers come with an anti-virus module, and they block everything!

I do not deny that modern browsers are much safer than those of 10 years ago (they have some protection: they check downloaded files, fight against phishing, etc.).). However, they do not provide full-fledged anti-virus protection! Browsers themselves are often the “victim” of infection.

I do not say about the fact that you can “catch” a virus not through your browser!

4) Antiviruses “eat up” a lot of resources but are of no use at all!

Much depends on your hardware, on what kind of antivirus you use, and how it is set up!

In general, on a more or less modern PC, optimally tuned antivirus (with cloud module) is often hardly noticeable and almost does not interfere with. work with dr. programs.

As to “usefulness” and efficiency: firstly, many anti-viruses participate in various tests and comparisons (see “How to use antiviruses” on page 54). e.g. Their reliability is assessed there as well!). Secondly, the work of anti-virus is often unnoticeable, and many threats (from which it has saved you). you may just do not even know!

In any case. If you can make your PC safer, I don’t see the point in neglecting the 5 (10) minutes to install the add-on. protection (and those five minutes could save you hours in the future. and maybe even months of work!).


At the end of 2019 Avast already received a warning shot from Firefox for the same activity, but then the developers brushed off this precedent by the fact that the collected user data was in any case anonymous. Journalists at Vice went a little further and learned that, if desired, the data could be collated and the identity of its owner recognized. We didn’t have to wait long for an answer from Avast. The developers claimed that users agree to this data collection and they are not breaking anything according to the law.

Do we even need antivirus in 2022?? All the precedents described above cannot fully describe the situation. If you start listing all the cases related to dangerous and shocking scandals related to anti-virus software, it could take a long time. One of the oldest antiviruses in existence, McAfee has always seemed like a security guarantor to many companies. However, in 2020, a hacker group was spreading malware under the guise of it, and doing so quite successfully. In another case, cybercriminals distributed malware under the guise of a powerful antivirus, which they claimed was capable of eliminating Pegasus. one of the most dangerous spyware ever.

It’s not good with antivirus, but it’s not good without it either. What to do?

Trusting antivirus software is becoming more and more difficult every day. At the moment, the antivirus niche is heavily crowded with pacifier antiviruses, which are sometimes designed only to gain access to your personal data and to extort money for a paid version by blocking and unnecessary scanning of everything in a row.

The main antivirus is always in our heads. The obvious and easiest way to protect yourself from viruses and cybercriminals is to be very careful online. But sometimes this is not enough. To give up antivirus completely. You will have to follow the following rules:

need, install, antivirus, windows
  • Always install the latest operating system updates
  • Test all downloaded files at online checking services for security
  • Test downloaded programs in virtual machines
  • Do not use any pirated software
  • Do not launch files received by mail and never use someone else’s flash drive

If you are ready to follow all these rules, welcome to the world without antivirus. However, if you do not have enough knowledge in the field of information security, this method is unlikely to work for you. At least do not use unverified and free antivirus. It is important to understand that when you download antivirus for free, the real price of using it is you and your privacy.

Tell me if you use an antivirus, and if so, what kind?

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So you’ve decided to install an antivirus, but which one to choose? You do not need to buy an antivirus, there are many free choices, and free versions of paid products. Which one to choose?? To answer this question there are independent ratings of antiviruses, compiled by antivirus labs. E.g. AV Comparatives, AV Test, Virus Bulletin.

If we start analyzing test results, the first one among free antiviruses is Avast Free Antivirus according to real-life test results. And it was tested in all three labs. Experienced users may say that Avast is like a virus, but according to the current methodology of analysis of combined tests from different anti-virus labs it will be in first place. Comparing this antivirus with others, it generally shows the same results as many paid counterparts.

The main criticism of this anti-virus is that it installs by itself. This usually happens when you download a program and it installs Avast. The second criticism is that it is difficult to remove. In fact, as a rule, with a normal installation and a normal uninstall through the same control panel, it is removed without problems if you do not try to remove its folder immediately.

How do antiviruses differ

If simple antiviruses (for example, KAV) and there are multifunctional combines, so-called Internet Security. For example, a simple antivirus saves your PC if your computer has already picked up a virus. That is you press “Scan” and antivirus searches for viruses and disinfects and removes them.

Pure antivirus does not prevent a virus from getting onto your computer. the antivirus prevents this virus from executing its plan.

In major anti-viruses Kaspersky Internet Security, Eset Smart Security 9 and others, there is a firewall, it is also called firewall, or firewall.

So, it is from the antivirus little sense in protecting your PC from pests from the Internet, t.к. they try to fix the malicious software which already infiltrated your PC. A firewall tries to prevent malware from penetrating from the Internet. A firewall tries to monitor and filter the traffic that comes to your PC.

In other words the firewall tries to catch the virus before it reaches your PC. To keep the virus from getting to your computer. It kind of closes the door to the internet to certain programs.

Also, the firewall tries to keep track of the programs which are already installed on your PC and see if any of the programs try to access the internet.

need, install, antivirus, windows

As, many viruses try to get access to the Internet under the guise of one of the programs to transfer your personal data to hackers or vice versa, to create a connection to the Internet and to introduce more pests. At this point, it is more important than antivirus.

Do I need antivirus on Windows 10??

I use Windows 10, from what I understand it has built-in antivirus Windows Defender. Does it make sense to use any free antivirus (Avast, Kaspersky, Aviga. ) ? That is, will it improve security or will it only reduce performance?

П.С. only free antiviruses are considered!

I use Avast, it does not affect performance, but occasionally it scolds for malware from some sites. In addition to antivirus, it makes sense to periodically check antitrojans (Spybot Search and detroy or analogues), to have unchecky installed, a head on your shoulders and fresh backups, not mounted to the system.

Since I compared it by eye with it and without. If you have a 486dx50 of course, the difference may be noticeable.

Difficult question. Let me list the cases where antivirus is needed.

So, if the following categories have access to your computer on a regular basis. Put an antivirus:. Inexperienced, self-serving users (you can count yourself among them);. Children (especially gifted and not);. Koolhackers, specialists and other charlatans (like me).

If you:. Download torrents and pirates on a regular basis;. Go to legitimate sites;. No idea what are viruses and how to remove them.install antivirus!

If you are just afraid that the computer will not turn on and so on. similarly, install antivirus.

Will anti-virus be useful or will Windows Defender be enough??

Basically, WD does not have proactive protection, the SmartScreen does, and things are not going so well with it. Yes, it will save from serious threats (as well as the underestimated UAC), but it is difficult to call it true protection. Going off topic a little bit, to quote you a phrase which has become a classic

In short, how useful antivirus is is up to you. But. I still recommend you install it. The reason is simple. Let the antivirus screw up 100500 times, but at least once it will find a virus that you miss.

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How to configure Windows Defender Security Center?

Now, Windows Defender can offer the user a great package of security options. Of course, they are also present in other antiviruses. For example, it can protect your computer in real time. Quite often updated and it has a timed analysis function. This security feature is already implemented in Windows 10, so that the load on the processor and RAM is minimal.

Windows Defender is currently turning into one of the best antiviruses to protect your computer. This has been confirmed this year by SE Labs. Windows Protector in this study showed a pretty decent functionality in the work to find pests and was in the top three with such strong antiviruses as ESET, Kaspersky, Norton. This can be clearly seen in the screenshot.

For example, it blocked 98% of malware attacks in tests in March, and 100% in April. Average pest detection rate of 99.5%. If you consider how the “Windows Protector” identified the malware, it has identified and subsequently blocked 100% and 99.9% of malware sent to it. That’s a decent number.

The Windows Protector was also awarded high scores in usability tests, as it generated almost no false alerts. On average, the number of false positives in other tested antiviruses is 10. And Windows Defender had only 4 errors in two tests.

How to turn off the defender completely

In new editions of Windows 10 (1903 and above), you must first disable “Tamper-proof”, which monitors the computer for changes by malware and blocks access to settings.

All steps must be performed as an administrator.

Click on the arrow icon in the tray, click on the shield icon.

Open the “Protection against viruses and threats” section.

Let’s look at a few ways to turn off Windows Defender system antivirus completely.

In the Group Policy Editor

The method will work if you have “Professional” or “Corporate” edition of Windows 10 installed.

On the Start menu, type gpedit.msc and open the application.

Open the Computer Configuration. Administrative Templates. Windows Components branch.

In the left list, select the “Windows Protector Antivirus program” folder. Then on the right side of the window, double-click on the “Turn off anti-virus program Windows Defender” setting.

Select the radio button “Enabled” in the settings and click on “Apply”.

Next open the following settings one by one:

In each of them, set the switch to “Disabled” and click “Apply”.

Navigate to the “Real-time protection” folder.

  • Turn off real-time protection: set the switch to “On.
  • There is an easier way to disable the protector. with a special program (see Enable Behavioral Surveillance. Disabled.
  • Check all downloaded files and attachments. Disabled.
  • Monitor program and file activity on your computer. Disabled.

After these steps, be sure to restart your computer.

Please note. To reactivate the protector, follow all steps in the reverse order, but set all settings to “Not set”.

In the registry editor

The method is suitable if you have “Home” edition of Windows 10 installed.

Important! Follow the steps in the sequence specified in the instructions. Do not change any other registry settings, as doing so would interfere with the operation of the system

If you are a beginner I suggest that you read the following for general information. There is a simpler way to disable the protector. using a special program (see “Enable behavior monitoring” on page 52). ).

Enter regedit in the Start menu and start the registry editor.


Just below it, expand “Policies” and then expand “Microsoft. Right-click on “Windows Defender” and select New. DWORD (32 bit) in the context menu.

Specify the name DisableAntiSpyware. Then double-click on the parameter, type 1 in the value field and click OK.

Right-click on “Windows Defender” and select “Partition” under “Create”. Name the partition Real-Time Protection.

Add a few more DWORD (32 bit) parameters with value 1 to this section:

Create a section called Spynet, add three parameters to it:

Expand it by clicking on HKEY_LOCAL_MACHINE\SYSTEM. CurrentControlSet. Services. WinDefend. Find the Start parameter and set its value to 4.

In addition, you can also disable the tray icon of the defender. To do this, open Task Manager, go to the “Autorun” tab, right click on “Windows Security notification icon” and select “Disable”.

To resume the protector, you’ll need to delete any settings you’ve created.

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