
Windows Defender Service Troubleshooting Checklist
If Windows Defender won't start, won't update, or shows error messages like "Service stopped" or ...
Software troubleshooting desk

If Windows Defender won't start, won't update, or shows error messages like "Service stopped" or ...

You try to open a shared calendar in Outlook and get an “Access Denied” or “You do not have suffi...

Windows Defender (Microsoft Defender Antivirus) is the default endpoint protection in Windows 10 ...

When you try to update an app from the Microsoft Store and see a "permission denied" or "access d...

You're trying to install or update Microsoft Teams, and you see an error like 'Module not found' ...

If PowerShell crashes or hangs right after you install a new module, you're not alone. This often...