
Fix Windows Defender Login Loop Using Command Prompt
If you're stuck in a login loop after a Windows update or Defender configuration change, the issu...
Software troubleshooting desk

If you're stuck in a login loop after a Windows update or Defender configuration change, the issu...

You may see “Task Scheduler service is unavailable” when opening Task Scheduler, or scheduled tas...

You click Check for updates, and after a long wait, you get a timeout error. This is often caused...

You click the PowerShell icon or type 'powershell' in the Start menu, but nothing happens—no wind...

If you see a message that Windows Security has an invalid configuration and can't sync, the issue...

If Windows Defender's real-time protection appears stuck on 'Scanning' and never completes, it ca...