For most people using a supported and fully updated Windows 11 computer, yes: Microsoft Defender Antivirus and the other protections inside Windows Security are sufficient as the primary antivirus.

A patch Microsoft released on Wednesday to fix a zero-day vulnerability in its Defender security engine may cause Windows machines to write files large enough to completely consume available disk ...

If VMware cannot scan local directory, you might not have permission or the source file might either be protected. Run VMware ...

Facepalm: Microsoft released an update for a recently unveiled zero-day vulnerability in Windows Defender, but the patch is apparently making things even worse. The researcher who first discovered the ...

Learn how BitLocker, passkeys, Microsoft Defender, and other Windows 11 security features protect your data, accounts, apps, and devices.

A hands-on Windows 11 experiment finds that most ancient malware is harmless, but some decades-old threats can still slip past Defender.

Russian hackers are exploiting hotel Wi-Fi networks at various locations that attract corporate travelers to compromise ...

Scan and clean your PC with the Windows Malicious Software Removal Tool. Learn how to run it, check results, and remove ...

Looking for the best antivirus for Windows 11? Check out our top picks to protect your device as well as your system and ...