The use of antivirus in our time has become a prerequisite for ensuring the security of the system. After all, everyone can encounter viruses on their computer. Modern antiviruses, which guarantee maximum protection, are quite demanding on resources. But this does not mean that weak devices should remain vulnerable, if not unprotected at all. For them, there are simple solutions that will not adversely affect the performance of the laptop.
Not all people have the desire or ability to upgrade their device by replacing some parts or the laptop itself. Undoubtedly, antiviruses effectively protect the system from virus attacks, but they can load the processor very heavily, which will have a bad effect on your work with the computer.
You don't have to have an old device to wonder about a lightweight antivirus. Some modern budget models also need undemanding protection. By itself, an antivirus program has a lot to do: monitor running processes, check downloaded files, and so on. All this requires resources, which can be limited. Therefore, it is worth choosing those antiviruses that offer basic security tools, and the fewer additional functions such a product has, the better in this case.
Avast Free Antivirus
Avast Free Antivirus is a free Czech antivirus that does not load the system much. It has various auxiliary functions for convenient operation. This program can be easily customized to your liking, "throwing out" unnecessary components and leaving only the most necessary. Supports Russian.
As you can see in the screenshots, Avast consumes few resources in the background.
When checking the system, it is already a little more, but when compared with other antivirus products, this is quite a normal indicator.
AVG
Easy-to-use AVG effectively fights various threats. Its free version has basic tools that are enough for good protection. The program does not heavily load the system, so you can work calmly.
The load on the system in normal mode with basic protection is low.
During the scanning process, AVG also does not consume much.
Dr.Web Security Space
The main function of Dr.Web Security Space is scanning. It can be executed in several modes: normal, full, custom. Also, there are such tools as SpIDer Guard, SpIDer Mail, SpIDer Gate, firewall and others.
The antivirus itself and its services do not consume many resources.
The situation is similar with the scanning process: it does not critically load the device.
Comodo Cloud Antivirus
The well-known free cloud protector Comodo Cloud Antivirus. Perfectly protects against all kinds of Internet threats. Loads a laptop a little. Compared to AVG or Avast, Comodo Cloud requires, first of all, a more stable Internet connection to provide full protection.
When checked, it does not critically affect performance.
Along with the antivirus, another auxiliary software is installed, which does not take up much space and does not eat a large amount of resources. You can remove it if you wish.
panda security
One of the popular cloud antiviruses is Panda Security. It has many settings, supports Russian. It takes up quite a bit of space and consumes a minimum of resources. The only negative, if you can call it that, is the need for a stable Internet connection. Unlike Comodo Cloud Antivirus, this product does not automatically install additional modules.
Even when checking files, the antivirus does not load the device. This defender runs a few more of its services that do not consume many resources.
Microsoft Windows Defender
Windows Defender is Microsoft's built-in antivirus software. Starting with Windows 8, this software is installed by default as a protection against various threats, and is not inferior to other antivirus solutions. If you do not have the ability or desire to install other software, then this option will suit you. Windows Defender automatically starts after system installation.
The screenshot shows that the defender does not consume many resources.
With a full scan, it does not significantly load the system.
Other protection methods
If you cannot or do not want to install an antivirus, then you can get by with the minimum set, which can also ensure the security of the system, but to a lesser extent. For example, there are portable scanners Dr.Web CureIt, Kaspersky Virus Removal Tool, AdwCleaner and the like, which can be used to check the system from time to time. But they cannot provide full protection and prevent infection, as they work after the fact.
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| Panda cloud |
Antivirus for extremely weak computers |
| Panda is a lightweight yet powerful antivirus with cloud protection technology. Due to the fact that all scans and calculations are carried out on a third-party server, Panda Antivirus is considered the best antivirus solution for weak computers. Antivirus is completely free. | |
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| Dr. Web |
Treats even the most serious infections without installation. |
| CureIt! is a lightweight antivirus scanner from Dr.Web, which quickly scans the system for antiviruses and eliminates threats. Does not require installation. | |
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| FREE |
Fast antivirus on a lightweight Sophos engine |
| PREVENTON antivirus is a fairly recent development, but has already established itself as one of the most productive antivirus programs. Includes comprehensive protection, parental control and firewall. | |
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| PC Tools AntiVirus |
Comprehensive FREE antivirus that is friendly with Windows XP and old computers.
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| A free antivirus that focuses on protecting against viruses from the Internet. Lots of different functions and modules. Optimized for older versions of Windows. | |
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| F-Secure Internet Security |
Free, powerful comprehensive antivirus. |
| The best combination of power and performance, as well as being free, make this antivirus a clear winner among equals. Versatile laptop protection against various threats will not allow any virus to pass through. The system requirements are extremely forgiving, which allows you to run this free antivirus program even on an old laptop. | |
Not all computers can pull powerful antiviruses - on weak PCs, these antiviruses eat up all system resources, and because of this, the computer "slows down". That is why we have made for you a selection of good antiviruses even for weak computers. Thanks to them, you can protect your data without slowing down or overloading the system. So that the old computer does not slow down, we suggest download any light antivirus from the list.
All antiviruses presented above are free!
You just have to download the program to your computer and install it. Do not forget that after installing a new antivirus you will need an Internet connection to update the antivirus databases - this will keep your protection up to date.
And finally, I will say: do not rely on antiviruses for a weak computer - they do not use the full potential of the system and can skip a virus. It is better to buy a new laptop or make your computer more powerful to install powerful programs and antivirus programs.
Many who use antiviruses to protect their computer notice that the antivirus slows down the system. Why is this happening? And because, in order to protect your system from viruses, the antivirus constantly performs various checks - it checks for new files downloaded to your computer, checks the sites you visit, checks the system as a whole, etc. Each check wastes your system resources and takes time, mainly because of this, the computer starts to slow down.
I have personally worked with each of the currently popular antiviruses and I know their pros and cons, but I decided to run a few tests on a clean operating system to make sure which antivirus is still the fastest. Antiviruses participated in testing: Kaspersky Internet Security, Avast (free version), Dr. Web.
During testing, I tried to load the system with various games, "heavy" programs, downloaded files / torrets from the Internet, visited infected sites. The results of the experiment were as follows:
1) Kaspersky Internet Security- in general, not weakly loaded the system. It’s just that the running antivirus itself is already eating up about 300 megabytes of RAM, so during games and using programs that are demanding on computer resources, the system constantly slowed down and hung up. When downloading files, the system also loaded significantly due to the fact that Kaspersky took a lot of resources to check downloaded files.
2) Dr. Web- this antivirus as a whole did not have a significant impact on the system. True, in modern games there were still brakes and freezes. When working with the Internet - there were no lags, but there were other problems - Dr. Web considers a lot of sites suspicious and blocks access to them, even if I am 100% sure that the site is safe, then I can get to it only after disabling the antivirus. Same way Dr. Web from time to time it starts a full system scan for viruses by itself, and during this scan the system noticeably slows down.
3) Avast (free version)- this antivirus as a whole did not have a significant impact on the system. Avast occupied only about 80 megabytes of RAM. In games and when working with programs, there were no brakes in the system. When working with the Internet, there are also no problems.
The result of the experiment is this:
Avast turned out to be the fastest antivirus among these three. But it's possible that it was because I was using the free version.
As I wrote above, antiviruses slow down the system because they check various files / sites, etc. for viruses. If the antivirus does not require resources at all, then it is quite possible to conclude that it will not scan files very carefully for viruses. Do not forget that the antiviruses tested in this article are paid antiviruses, which are mainly designed to protect valuable information from various companies, etc. Accordingly, these antiviruses must scan the system for viruses as carefully as possible, and because of this, they can significantly slow down the system. If you are looking for an antivirus for your home computer, where no valuable information is stored, then it might make sense to choose some free antivirus like AVG- perhaps it will protect your computer only from the main threats, but it will practically not load the system.
And if you have not yet decided whether you need an antivirus at all, then I advise you to read this article -
With the development of information technology, a computer and a laptop has become an attribute of a person's daily life. Thanks to devices and the Internet, users can get useful information, communicate with friends and acquaintances, and also relax after a hard day at work. Unfortunately, there is a high probability of “picking up” viruses. To protect your computer, it is recommended to install an antivirus.
When it comes to installing anti-virus software, many users don't know which anti-virus takes the least load on the operating system. To find a solution, you need to analyze several products. At the same time, do not forget that the characteristics of the computer play an important role.
Preparation for the experiment
To figure out which is the fastest antivirus, you need to install the defenders on your computer one by one, and then test it for a week. For the experiment, a laptop with the following characteristics will be used:
- Processor - 2.8 GHz;
- RAM - 2 Gb;
- Hard disk - 320 Gb.
The following products will be used as tested antiviruses:
- Kaspersky Internet Security.
- Dr. Web.
- Avast.
- Qihoo 360 Internet Security.
- Microsoft Security Essentials.
To conduct an experiment and determine which antivirus does not slow down the system, it is necessary to install a new product on the machine every week. It is important that anti-virus software is tested under the same conditions.
Antivirus testing
To determine the optimal anti-virus software, it is recommended to download the program as much as possible. During testing, games are downloaded to the computer, since they are large in size, which means they make the “defender” work as much as possible.
The second step of testing was the launch of games. In game mode, some antiviruses are practically inactive, while others, on the contrary, consume system resources to the maximum.
At the third step of testing, work with graphic editors was performed. Photoshop and 3D Max were used. These applications themselves consume a lot of resources. If the antivirus does not load the system, conversion, saving and processing are faster. In addition, the high consumption of resources by the "defender" affects the quality of the graphics.
Do not forget about visiting Internet resources. It is best to open such websites that have animation and pictures with good quality. In addition, scripts and viruses masquerading on the pages of a website will be a good tool for testing.
The next step is to copy large files from one folder to another. Some antiviruses begin to actively scan folders and files that are copied to a new location.
The final stage of testing will be scanning the hard drive and detecting viruses. It should be noted that the load on the media directly affects the scanning time, as well as the consumption of resources.
Test results
After testing, you can see interesting results. When working with graphic editors, programs such as Kaspersky Internet Security and Dr. Web. Of course, this does not mean that antiviruses consumed all resources, but for correct work with Photoshop, it is better to temporarily disable them.
When copying files, Kaspersky loaded the system, as well as Microsoft Security. With the activity of these applications, the copy speed dropped sharply by 1.5 Mbit / s. When moving or making copies of small files, this is not critical, but when you need to copy a folder larger than 15 GB, this is already a problem, as the time increases dramatically.
Downloading files from the Internet has forced antiviruses such as Qihoo 360 and Kaspersky to actively absorb resources. When checking downloaded files, defenders load the system, consuming up to 75% of free RAM.
During testing, websites loaded with content, as well as infected with viruses, were visited. Avast showed increased activity. In addition, he blocked even those sites that were not infected. At the same time, it consumed the most resources.
As for the full system check, I was surprised by the result shown by Avast. This antivirus consumed the least amount of RAM, only 100-150 Mb. At the same time, it did not interfere with the work with other programs. Unfortunately, other defenders were absorbing too many resources.
In addition to all Dr. Web starts to check the system when the computer is idle. During this period, the system load is about 30%.
Which antivirus to choose
According to the experiments, Avast Free antivirus can be distinguished. It turned out to be the fastest product that practically does not load the system. In addition, the defender perfectly copes with his immediate tasks. The application finds viruses both on the Internet and on removable media. Of course, such giants as Kaspersky or Dr. The web does a better job of protecting your computer, but unfortunately, they require serious resources.
Users with a large amount of RAM and a powerful processor should consider serious complexes, but for the "average" it is best to choose Avast or Qihoo 360.
Do antiviruses slow down the system
If we consider weak machines, then even an antivirus with minimal functionality will consume a lot of resources on them. Before installing antivirus software, it is recommended that you familiarize yourself with its minimum requirements.
Of course, there are also products that unreasonably consume system resources. These Defenders include:
- Threat Track VIPRE;
- Quick Heal;
- norman security.
AV-Test laboratory tested 23 antiviruses on a computer with the following characteristics:
- Processor - Intel Xeon 2.8 GHz;
- RAM - 4 Gb;
- HDD - 500 Gb.
As a result, the best antivirus had a score of 5.1 points, and the worst 13.9.
According to the results, the leading positions were taken by Kaspersky Internet Security and Bitdefender antivirus.
Conclusion
System performance plays an important role, but do not forget that anti-virus systems are primarily aimed at protecting your computer. In addition, paid solutions have advanced functionality, and, accordingly, they consume more resources.
In order to avoid problems with the antivirus, it is best to consider its minimum system requirements, as well as how well it copes with protection. After careful analysis and comparison, you can make a choice.
Load testing included 7 test stages over 14 months for each antivirus solution. 19,000 individual results for each product were used, and the results of 35 test events were pooled. In the current endurance test from January 2014 to the end of February 2015, a total of 23 antiviruses were tested for performance in the AV-TEST laboratories. This test alternated between Windows XP, 7 and 8.1 operating systems.
infographics
23 antiviruses in the performance test
The testing included antivirus programs Ahnlab, Avast, AVG (free and paid versions), Avira, Bitdefender, BullGuard, Comodo, ESET, F-Secure, G Data, Kaspersky, McAfee, Microworld, Norman, Norton, Panda, Qihoo 360, Quick Heal, Tencent, Threat Track and Trend Micro. Additionally, a Windows system with free antivirus Microsoft Security Essentials or Windows Defender (for Windows 8/8.1) was run through all tests to obtain a comparative result. A base system without anti-virus protection was used to compare performance results later. More information about the base system is available in the Test Configuration section.
For all products in the tests, the required time (how long) to complete the test suites, which includes the following types of activity on the user's computer, was measured:
- downloading files from the Internet;
- website launch;
- installing applications;
- launch applications with documents;
- copying files.
For all subsections, load scores from 1 to 5 were calculated after each test, where 1 is good and 5 is bad. If the antivirus slowed down the system from 0 to 20 percent, it received 1 load point. From 21 to 40 percent - 2 points, from 41 to 60 percent of the drop in productivity - 3 points, and so on up to 5.
Thus, for 5 test sections, the ideal result was obtained when receiving 5 load points, and the worst result was obtained when reaching 25 points. All intermediate results were combined, and as a result, the average for 7 test stages was calculated.
Load testing results
: Some antivirus programs will be a heavy burden when performing daily tasks in Windows
The minimum impact on system performance, and, consequently, the best performance results, was shown by the anti-virus solution from Kaspersky Lab (Kaspersky), gaining 5.1 load points. As previously noted, the ideal result is 5.0 points. Security products from Bitdefender and Qihoo 360 are next with 5.3 and 5.7 respectively.
6 antivirus solutions - McAfee, Bullguard, Trend Micro, Norton, Avira and F-Secure also performed well in load testing, scoring between 6.1 and 7.9 load points. All other 14 products were above this threshold. At the same time, the Windows system, protected by the built-in antivirus Microsoft Security Essentials or Microsoft Defender, scored 8.7 points.
Antivirus solutions from Norman, Quick Heal and Threat Track already slow down the system significantly - 12, 12.4 and 13.9 load points. None of the antiviruses showed the worst result of 25 points.
Category "Copy files" in Windows: While Kaspersky's antivirus hardly slows down the system, Threat Track and Quick Heal have a noticeable effect
To better understand the final figures, we will give an example of two opposite results. Any user becomes impatient, especially when copying files in Windows. In this test, the base system without antivirus protection takes 141 seconds to copy the AV-TEST test suite containing 3.3 GB. A Windows system with Kaspersky antivirus installed scans the files and takes 165 seconds to copy. The worst performing antivirus, Threat Track, takes an average of 300 seconds for the same procedure.
5 categories in performance testing: Most of the antivirus slowed down the PC in the category "copying files"
Test configuration
Several computers with absolutely identical hardware characteristics were used for the test in the laboratory: Intel Xeon X3360 @ 2.83GHz, 4 GB RAM and a 500 GB hard drive. Since these computers may differ slightly in performance, they were selected from 60 test computers of the AV-TEST laboratory. All computers have been tested multiple times with unsecured Windows XP, Windows 7 and Windows 8.1 operating systems. PCs with identical performance indicators were selected for load testing. The obtained performance indicators were used as a benchmark for the test. Before and after each antivirus was tested, each system was tested to ensure that they still showed the original indicative results.
Each antivirus product went through the test cycle several times. After that, the original state of the system was restored using a system image, including installed applications. Then the test is repeated again, the system is rebooted, and the series of tests performed is repeated. The computer is rebooted and tested several times, then the system is restored using the image, and the procedure begins anew. After all, there are a minimum of 20 and a maximum of 40 separate results for each individual test. For 90 test steps, 1,800 to 3,600 individual results are recorded for each antivirus. In the load test, which included 7 test steps, between 12,600 and 25,200 results were actually analyzed, with an average of 19,000 for each product. In testing 23 products, 430,000 test results were obtained.
Choosing an antivirus
You don't have to have an old device to wonder about a lightweight antivirus. Some modern budget models also need undemanding protection. By itself, an antivirus program has a lot to do: monitor running processes, check downloaded files, and so on. All this requires resources, which can be limited. Therefore, it is worth choosing those antiviruses that offer basic security tools, and the fewer additional functions such a product has, the better in this case.
Avast Free Antivirus
Avast Free Antivirus is a free Czech antivirus that does not load the system much. It has various auxiliary functions for convenient operation. This program can be easily customized to your liking, "throwing out" unnecessary components and leaving only the most necessary. Supports Russian.
Download Avast Free Antivirus
As you can see in the screenshots, Avast consumes few resources in the background.
When checking the system, it is already a little more, but when compared with other antivirus products, this is quite a normal indicator.
Read also: Comparison of Avira and Avast antiviruses
AVG
Easy-to-use AVG effectively fights various threats. Its free version has basic tools that are enough for good protection. The program does not heavily load the system, so you can work calmly.
Download AVG for free
The load on the system in normal mode with basic protection is low.
During the scanning process, AVG also does not consume much.
Dr.Web Security Space
The main function of Dr.Web Security Space is scanning. It can be executed in several modes: normal, full, custom. Also, there are such tools as SpIDer Guard, SpIDer Mail, SpIDer Gate, firewall and others.
Download Dr.Web Security Space
The antivirus itself and its services do not consume many resources.
The situation is similar with the scanning process: it does not critically load the device.
Comodo Cloud Antivirus
The well-known free cloud protector Comodo Cloud Antivirus. Perfectly protects against all kinds of Internet threats. Loads a laptop a little. Compared to AVG or Avast, Comodo Cloud requires, first of all, a more stable Internet connection to provide full protection.
Download Comodo Cloud Antivirus from the official website
When checked, it does not critically affect performance.
Along with the antivirus, another auxiliary software is installed, which does not take up much space and does not eat a large amount of resources. You can remove it if you wish.
panda security
One of the popular cloud antiviruses is Panda Security. It has many settings, supports Russian. It takes up quite a bit of space and consumes a minimum of resources. The only negative, if you can call it that, is the need for a stable Internet connection. Unlike Comodo Cloud Antivirus, this product does not automatically install additional modules.
Download Panda Security antivirus
Even when checking files, the antivirus does not load the device. This defender runs a few more of its services that do not consume many resources.
Microsoft Windows Defender
Windows Defender is Microsoft's built-in antivirus software. Starting with Windows 8, this software is installed by default as a protection against various threats, and is not inferior to other antivirus solutions. If you do not have the ability or desire to install other software, then this option will suit you. Windows Defender automatically starts after system installation.
The screenshot shows that the defender does not consume many resources.
With a full scan, it does not significantly load the system.
Other protection methods
If you cannot or do not want to install an antivirus, then you can get by with the minimum set, which can also ensure the security of the system, but to a lesser extent. For example, there are portable scanners such as Dr.Web CureIt, Kaspersky Virus Removal Tool, AdwCleaner and the like, which can be used to check the system from time to time. But they cannot provide full protection and prevent infection, as they work after the fact.
We continue to investigate the valuable statistics of the AV-TEST laboratory, which tests antiviruses. In one of the previous materials, we talked about, and in this article we will consider another topical issue - antiviruses for Windows 10. Moreover, we will evaluate them by an important characteristic: performance.
Antivirus performance on Windows is a sore subject, it is not uncommon for the system and antivirus software to literally fight each other for processor resources, RAM and an Internet connection channel. In short, if you look at the antivirus rating specifically in relation to Windows 10 and specifically in terms of performance, you can learn a lot of new names and get a lot of really embarrassing results.
AV-TEST evaluated antivirus software on an Intel Xeon X3360 @ 2.83GHz computer with 4GB RAM, 500GB hard drive, and Windows 10 Home installed using five system slowdown tests, each performed while the antivirus was running. Let's look at the results.
1st place: AhnLab V3 Internet Security
Many of us have never heard of the leader in the performance table according to AV-TEST. The best antivirus for Windows 10 in terms of performance tests call a little-known Korean product.
AV-TEST statistics claim that AhnLab practically does not slow down standard Windows 10 operations: copying files (both locally and over the network) when the antivirus is running slows down so minimally that it can be neglected; the same can be said about installing programs, downloading files from the Internet, and running standard Windows programs. Slightly "slows down" only the loading of sites, but only 1% more than the industry average. At the same time, the antivirus detects 100% of malware from 10,684 virus samples collected on the Web over the past 4 weeks.
AhnLab V3 Internet Security - Impact on Windows 10 performance
| Test | Number of samples | Result | |
| 39 | 12% | 11% | |
| 20 | 4% | 4% | |
| 12 | 8% | 15% | |
| 19 | 7% | 26% | |
| 7 915 | 2% | 7% |
Data: AV Test
2nd place: Avira Antivirus Pro
To our no less surprise, the second place in the ranking of the most nimble antiviruses for Windows 10 is occupied by a paid version. Avira.
Avira Antivirus Pro With Avira on board, files in Windows 10 copy only 3% slower than without antivirus. Loading sites and downloading files also slows down so slightly that it can be ignored. Standard Windows applications run about 18% slower with Avira running, and third-party programs install almost half as fast as the industry average.
At the same time, Avira cannot be called the best antivirus for Windows 10 - only one of the fastest. In terms of antivirus scanning, Avira does not do very well: out of 10,684 fresh viruses, the scanner finds somewhere around 97%.
Avira Antivirus Pro - Impact on Windows 10 performance
| Test | Number of samples | Result | Industry average |
| Delay when opening websites | 39 | 8% | 11% |
| File download delay | 20 | 8% | 4% |
| Delay when starting standard programs | 12 | 18% | 15% |
| Delay when installing third-party programs | 19 | 12% | 26% |
| Delay when copying files | 7 915 | 3% | 7% |
Data: AV Test
3rd place: Bitdefender Internet Security
Also not the most popular antivirus among the Russian user, but it has good test results on Windows 10. Bitdefender Internet Security ranks third in terms of performance in the ranking of antiviruses for the "ten".
Bitdefender Internet Security Bitdefender is the most liberal antivirus in terms of downloading and copying files on Windows, which it has almost no effect on at all. Installing third-party software is also half as fast as the industry. But the antivirus scans the websites that are opened meticulously, as a result of which there is a delay of as much as 15% compared to the speed of opening without an antivirus. The test for the detection of fresh "malware" while the antivirus passes 100%.
Bitdefender Internet Security - Impact on Windows 10 performance
| Test | Number of samples | Result | Industry average |
| Delay when opening websites | 39 | 15% | 11% |
| File download delay | 20 | 1% | 4% |
| Delay when starting standard programs | 12 | 6% | 15% |
| Delay when installing third-party programs | 19 | 13% | 26% |
| Delay when copying files | 7 915 | 2% | 7% |
Data: AV Test
4th place: Kaspersky Internet Security
But our native Kaspersky is on the fourth line of the rating. Some will be surprised (like us) why it is only on the fourth place with such indicators, others - how it ended up in the top of the fastest antiviruses at all, but the fact is the fact: on Windows 10 Home, the full version of Kaspersky Internet Security detects 100% of the viruses offered to it and with this works extremely well.
Kaspersky Internet Security So, Kaspersky does not slow down the download of files from the Internet at all - from the word "generally". Files download at the same speed as without antivirus. Copying files is also almost imperceptible, and the launch of standard programs and the installation of third-party ones are half as fast as the industry average. Websites also load fairly quickly. And yet, the fourth line of the rating, although we would readily give him the first.
| Test | Number of samples | Result | Industry average |
| Delay when opening websites | 39 | 13% | 11% |
| File download delay | 20 | 0% | 4% |
| Delay when starting standard programs | 12 | 6% | 15% |
| Delay when installing third-party programs | 19 | 14% | 26% |
| Delay when copying files | 7 915 | 4% | 7% |
Data: AV Test
5th place: McAfee Internet Security
Closes the top five products among the best antivirus for Windows 10 McAfee Internet Security, the free version of which many inadvertently try with Adobe Flash Player. Here, however, we are talking about a full-fledged paid version.
McAfee Internet Security McAfee, although it passes the virus detection test 100%, already gives a fairly noticeable delay when installing programs: 30% slower than without antivirus. But the fastest allows you to open sites and download files from the Web. Copying is generally slower than the industry average. Standard programs run quite quickly.
Kaspersky Internet Security - impact on Windows 10 performance
| Test | Number of samples | Result | Industry average |
| Delay when opening websites | 39 | 7% | 11% |
| File download delay | 20 | 1% | 4% |
| Delay when starting standard programs | 12 | 5% | 15% |
| Delay when installing third-party programs | 19 | 30% | 26% |
| Delay when copying files | 7 915 | 11% | 7% |
Data: AV Test
Other candidates
Three little-known products also show good performance results: micro world eScan Internet Security Suite, PC Pitstop PC Matic and VIPREadvanced security. However, the former falls far short of the bar in malware detection, the latter suffers from false positives, and the third, to our surprise, works brilliantly - 100% of detected viruses, and performance in certain tests is even higher than that of McAfee and Avira - but why something few people know.
VIPRE Advanced Security Favorite by Russian users Avast Free Antivirus in terms of performance, it sags somewhat, in particular, due to the slow launch of standard Windows system applications and incomplete detection of malware. Otherwise, all the indicators are quite decent - we would give him a place without any special complaints. Avira.
"Native" Microsoft Windows Defender does not shine in tests, as it slows down the installation of applications by almost half the installation speed when Windows Defender is disabled (by 42%), and plus, it gives false positives too often.
Memorable PC Power Users Norton Internet Security and ESET Internet Security- quite "heavy" guys. The second one was especially distinguished, which manages to slow down the launch of the simplest system applications by as much as 60%.
