Fix 'Windows Defender Failed to Start Due to Group Policy' Error
You may see an error saying 'Windows Defender failed to start due to group policy' when trying to...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listFix Microsoft Teams Stuck on Loading Due to Network Firewall
You launch Microsoft Teams, but it gets stuck on the loading screen with no error message. One co...
Fix VSCode Extension Host Terminated Unexpectedly After Update
After updating Visual Studio Code, you may see a popup saying "Extension host terminated unexpect...
Fix SSH Permission Denied (publickey) Error
You try to SSH into a server and get Permission denied (publickey). This typically m...
Fix Windows Defender Real-Time Protection Turning Off Automatically
If you notice Windows Defender real-time protection is turning off by itself, your PC may be vuln...
Fix Windows Security Antivirus Not Turning On
You open Windows Security and see that the antivirus is off, with no obvious way to turn it on. T...
Topic paths
Quick titles
Resolve Windows Update Error 0x800f081f in Windows 10Fix Windows Security Module Not Found in Windows 11Windows Defender Service Not Starting in Windows 10: FixesResolve Windows Search Authentication Failed Permission DeniedWindows Security Service Configuration Error FixFix Windows Search After Update: No ResultsHow to Fix Task Scheduler Dependency ConflictsPython Module Not Found? Use This Troubleshooting Checklist