
Windows Security Troubleshooting Checklist
If Windows security features aren't working as expected—like Windows Defender won't start, update...

If Windows security features aren't working as expected—like Windows Defender won't start, update...

If you see a "token expired" error in Windows Command Prompt while using Azure CLI, PowerShell, o...

If you see a 'path not found' error when using Windows Search on Windows 11, the search indexer o...

You open Outlook and see an authentication failed error tied to your Exchange account. The passwo...

If you're seeing FATAL: password authentication failed for user when connecting to P...

You click the Windows Security icon in the taskbar or try to open it from Settings, but nothing h...