
Fix Windows Defender Token Expired Preventing Service Start
You see 'Token expired' in the Windows Defender event log or a notification that the service didn...
Software troubleshooting desk

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

When Chrome displays 'Authentication failed' during login, it usually means the browser can't ver...

When you run a PowerShell script that calls an external API—like a cloud service, a CI/CD pipelin...

After a Windows update, you might see a certificate error in Task Scheduler when trying to run a ...

You're trying to send or receive email in Outlook, but you get an error about the SSL certificate...

Outlook users sometimes encounter two related problems: high memory usage (often 1 GB or more) an...