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Direct answer: the built-in Microsoft Defender aka Windows Security. Fully free, no premium version, blocks most malwares.
Free Antivirus for the Windows 11
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Anonymous
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Which free antivirus software is best for Windows 11?
[Original Title: Antivirus]
Windows for home | Windows 11 | Security and privacy
Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.
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Anonymous
2021-12-13T15:31:15+00:00 Good Day Tamim_ST,
My name is Carlo, I am also using Windows 11 pc and community member like you.
There is an antivirus came pre-installed in your computer , it is called Windows Security, it works like any other antivirus , this is the only antivirus I am using in my computer and it perform smoothly.
You can visit this link as reference to know more about Windows Security.
https://support.microsoft.com/en-us/windows/sta...
If you want to have a third-party antivirus, you can try the Malwarebytes
https://www.malwarebytes.com/mwb-download
I hope the information above helps.
Have a wonderful day ahead and stay safe.
Sincerely,
Carlo T.
Standard Disclaimer: This is a non-Microsoft website. The page appears to be providing accurate, safe information. Watch out for ads on the site that may advertise products frequently classified as a PUP (Potentially Unwanted Products). Thoroughly research any product advertised on the site before you decide to download and install it.
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Reza-Ameri 45,666 Reputation points Volunteer Moderator2021-12-13T16:15:15+00:00 Microsoft Defender which is built into the Windows 11 provides you a comprehensive and strong protection against malwares and it is free. We recommend users to use it as their default Anti-Malware program.
However, you may download and use other Anti-Malware products as you like just make sure they are ready for the Windows 11.
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Anonymous
2022-01-31T18:16:24+00:00