Kaspersky free is a good antivirus that has various nice features like additional network protection, as well as a password manager. However, when scanning or updating the database, it loads the system heavily, which is why even web pages can take a long time to load.
Avast free antivirus is a lightweight antivirus that allows you not to worry about your data or the performance of your computer. It has a lot of positive reviews, but there are some limitations because it is a free version (Don't worry, it doesn't affect the PC much.).
It was named the best antivirus five times during testing in 2021.
Classic antivirus (literally) is part of Windows 10-11 OS. It includes many functions of conventional antiviruses, for example: parental control, web protection, SmartScreen. And its main fax lists advantage is that it does not need to be installed, it is initially sewn into the system itself.
He was recognized as one of the best five times during testing in 2021.
Result
As you and I were able to see, there are many antiviruses and each of them has good characteristics, as well as some have unique functions that make them more significant for the client.
If you choose among free antivirus programs, then there are not so many good ones, and if you choose among these three, then you can not download the antivirus because Microsoft Defender antivirus copes with the tasks set. But if suddenly you are not satisfied with it, we recommend using Avast free antivirus because it is easy, and many users were satisfied.