If Security Intelligence Updates for Microsoft Defender Antivirus is not downloading or installing automatically on Windows 11/10, use the solutions in this post.

Fix Windows Defender Error code: 0x8050800c, An unexpected problem occurred, Install any available updates, and then try to start the program again.

Aside from new Windows setup and recovery updates, Microsoft has also published a new Defender update for Windows 11/10/Server installation images this week.

Microsoft’s built-in Windows Defender has had a feature that blocks installation of Potentially Unwanted Apps, (PUAs) since May, 2020. But up until now, it’s been disabled by default, which ...

If you have a Microsoft 365 subscription, you can download the Defender app to access additional security features not available on Windows 11 or 10.

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.