
Fix Windows Defender Network Error After Update
After a Windows Update, you might see a network error in Windows Defender, often with a message l...
Software troubleshooting desk

After a Windows Update, you might see a network error in Windows Defender, often with a message l...

You click to open Windows Defender Security Center and see a 404 page, or the Settings app shows ...

If you've connected an external USB drive and Windows Search can't find files on it, the drive is...

You open Settings > Update & Security, and everything under Windows Update is greyed out. Buttons...

You launch Microsoft Teams and see an error: 'port already allocated'. This usually means another...

If Windows Defender (Microsoft Defender Antivirus) hangs on a black screen with a spinning or fro...