
Fix 'Windows Defender Firewall Has Blocked' Error
You see a notification that Windows Defender Firewall has blocked an app or feature. This usually...
Software troubleshooting desk

You see a notification that Windows Defender Firewall has blocked an app or feature. This usually...

After a Windows Terminal update, you might see errors like “token expired” or “authentication fai...

If you use Windows Terminal on multiple computers, you may notice that changes you make on one ma...

If you're seeing a "504 Gateway Timeout" error when using Windows Search, it usually means the se...

If you open Task Scheduler in Windows 11 and see a blank white or gray window with no tasks liste...

When Windows Defender fails to start or update, you might see an error like 'port already allocat...