
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...

If you recently changed your network—switched Wi-Fi, moved to a new ISP, or updated router settin...

If you open Task Scheduler and see a blank white or gray screen—no tasks, no menus, just emptines...

If you need to allow several users to access a Windows machine remotely, the default Remote Deskt...

If your computer's CPU usage spikes after a Windows activation attempt, malware may be the culpri...

If you see a 'token expired' message when trying to run Windows Defender in Safe Mode, it usually...