
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...

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

You may see a message that your Windows Search token has expired, and Outlook stops syncing. This...

If you’ve seen “Too many requests” or “Rate limit exceeded” while using Windows Search, you’re no...

If PowerShell hangs or stops responding, it's often due to a problematic profile script, an add-i...

If a single user in your organization sees a 'Service Unavailable' error in Microsoft Teams while...

If the Windows Security app (Microsoft Defender) is missing, won’t open, or shows errors, reinsta...