The only con about the free version of Avira is that it does not offer protection against ransomware and web threats. In turn, running a third-party antivirus does not slow down your PC. That means the Windows Security app suspends its real-time protection, and only Avira does the inspection job. What’s more, Avira is compatible with Windows Security, just like Avast and other third-party antiviruses. Not to mention, Avast is also compatible with Windows Security, so parallel protection does not run on your Windows 11 PC. I have personally used Avast in the past and can vouch that it’s pretty good at catching malicious programs and files stored on your PC. You get all of these features absolutely for free. Avast Free Antivirus also offers deep rootkit scanning through boot sector scanning, which is amazing. It offers real-time protection against viruses, ransomware, spyware, and all kinds of new and old malware. Avast Free AntivirusĪvast is one of the popular free antivirus programs for Windows 11 out there, and for good reason. But if you want a simple and free antivirus for Windows 11 that also offers real-time protection, Kaspersky Security Cloud is a worthy choice.ĭownload Kaspersky Security Cloud 3. For example, the free version lacks VPN functionality, password manager, Wi-Fi monitoring, kids protection, etc.

Having said that, you don’t get some of the extra features that are bundled with the paid version of Kaspersky.

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