
How to Fix Windows Security Not Opening After Update
After a Windows update, you might click the Windows Security icon and nothing happens, or the app...
Software troubleshooting desk

After a Windows update, you might click the Windows Security icon and nothing happens, or the app...

If you see a message that Windows Defender is not running or the security center shows it's off, ...

You sign in to Windows, but Windows Defender keeps asking for credentials in a loop. This guide c...

You see 'Token expired' in the Windows Defender event log or a notification that the service didn...

When you run a PowerShell cmdlet like Connect-AzureAD and get an error, it can stop ...

If Remote Desktop stops connecting, shows authentication errors, or behaves unexpectedly, resetti...