
Fix Windows Security Service Not Starting Error
You click the Windows Security icon, but it doesn't open. Or you see an error saying the service ...
Software troubleshooting desk

You click the Windows Security icon, but it doesn't open. Or you see an error saying the service ...

You open Windows Search and get an error about a token being expired or permissions being invalid...

You open Chrome and see a red warning: "Your connection is not private" or "NET::ERR_CERT_DATE_IN...

If Windows Defender or another security tool is acting up—showing stale alerts, failing to update...

You may see an 'Access Denied' error when trying to open Windows Defender in Safe Mode. This typi...

You've installed Remote Desktop (RDP) on a new server or workstation, but it fails to start or cr...