Fix Windows Security Service Unavailable Permission Denied
You open Windows Security and see 'Service unavailable' or 'Permission denied'. The app may not o...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listWindows Search 404 Error: Practical Troubleshooting Checklist
If Windows Search shows a '404' error or simply returns no results, the search index is likely co...
Fix Remote Desktop 502 Bad Gateway on Windows 10
If you're seeing a '502 Bad Gateway' error when trying to connect to a remote desktop on Windows ...
How to Fix Windows Defender Error 0x800704ec
When you try to open Windows Defender (now called Microsoft Defender Antivirus) and see error cod...
Fix Windows Activation SSL Certificate Error via Registry
When trying to activate Windows, you might see an error like "0x80072F8F" or "SSL certificate err...
How to Fix Microsoft Store 'Module Not Found' Error
If you see a 'module not found' error when opening Microsoft Store or launching an app, it usuall...
Topic paths
Quick titles
Chrome 404 Not Found Error After Update: How to FixFix SSL Certificate Errors in Windows 10 Command PromptWindows Defender File Locked Error FixTroubleshoot wsreset.exe Not RunningOneDrive Sync Not Working? Try This ChecklistHow to Use the OneDrive Sync Dependency Conflict Repair ToolReset DNS Cache Not Working: SolutionsFix Command Prompt Invalid Configuration Sync Error