
Windows Security Troubleshooting Guide
Windows Security (formerly Windows Defender) usually runs quietly in the background, but sometime...

Windows Security (formerly Windows Defender) usually runs quietly in the background, but sometime...

You open Windows Security and see an error: "Module not found" or "Windows Defender module not fo...

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

If Windows Terminal fails to start or shows an error about invalid configuration, the problem is ...

You're browsing in Chrome and suddenly get a persistent SSL certificate error—even on sites you k...

If you or a user sees a “permission denied” or “access denied” error in Microsoft Teams—whether w...