Microsoft has released a special Defender update for Windows 11, Windows 10, and Windows Servers This update is meant to bring improved security and performance to Windows install images. Microsoft ...

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.

An unexpected problem occurred while checking for updates. For information on installing or troubleshooting updates, see Help and Support. This error seems to be ...