Windows 10 Activation Troubleshooting Checklist
When Windows 10 shows an activation error, the cause is usually a recent hardware change, a corru...
Software troubleshooting desk
Practical fixes for tool errors, setup blocks, and workflow issues.
Symptom
Cause
Fix route
Verify
Fresh repair notes
All notesFix '7-Zip Cannot Open File as Archive' Error
When 7-Zip displays 'Cannot open file as archive', it usually means the program can't recognize t...
Fix Microsoft Store Not Opening After Offline Installer
If you've installed an offline version of the Microsoft Store (for example, on a PC without inter...
Fixing 'Postman Unable to Verify SSL Certificate' Errors
If you see 'unable to verify SSL certificate' in Postman, the request is failing because Postman ...
Fix Windows Security Proxy Error After Update
After a Windows update, you might see a proxy error in Windows Security (formerly Windows Defende...
Fix 'Windows Not Genuine' Error After Update
After a Windows update, you might see a message that Windows is not genuine, even though it was a...
Issue queue
SitemapWindows Terminal Settings Backup and Restore Guide
Fix Chrome Profile Connection Refused Error Code
Nginx 404 Not Found: Common Fixes
How to Fix Permission Denied in Microsoft Store on Windows 11
Fix Windows Activation Rate Limit
Microsoft Teams Audio Device Not Working
OneDrive File Locked by Office: Troubleshooting Guide
Checklist to Clear and Rebuild Windows Update Cache
Fix Windows Update Cleanup Stuck Error 0x80070002
Troubleshoot Windows Search Authentication Failed in Windows 11
How to Resolve Outlook Authentication Failed with Exchange
How to Fix Windows Search Module Not Found
Fix Chrome Profile Connection Refused Error Code
Nginx 404 Not Found: Common Fixes
How to Fix Permission Denied in Microsoft Store on Windows 11
Fix Windows Activation Rate Limit
Microsoft Teams Audio Device Not Working
OneDrive File Locked by Office: Troubleshooting Guide
Checklist to Clear and Rebuild Windows Update Cache
Fix Windows Update Cleanup Stuck Error 0x80070002
Troubleshoot Windows Search Authentication Failed in Windows 11
How to Resolve Outlook Authentication Failed with Exchange
How to Fix Windows Search Module Not Found