
Fix 'Port Already Allocated' Error in Windows Defender
You open Windows Defender Security Center or try to run a scan, and you see an error saying a por...
Software troubleshooting desk

You open Windows Defender Security Center or try to run a scan, and you see an error saying a por...

You might see a Windows Defender rate limit error when scanning files or updating definitions. Th...

When you try to connect to a remote PC and see "Authentication failed", the prob...

If Windows Update won't start or you see an error that the update service is not running, it's us...

When Windows Security stops opening, shows blank pages, or fails to update, a full reset using Po...

When enabling BitLocker on a Windows PC, error 0x8031004A typically appears immediately after sel...