
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...

If you've set Command Prompt to run automatically at startup (via Startup folder, Task Scheduler,...

You open Windows Security and see 'Authentication failed' when trying to use Windows Defender. Th...

You try to delete a file, and Windows tells you it's locked by Windows Security. This often happe...

You try to upload a file to a Teams channel or chat, but see a 'permission denied' error. This us...

When Microsoft Store apps refuse to update, you might see error codes, endless loading, or simply...