Fix Windows Update 404 Not Found Error on Windows 10
When you run Windows Update and get a "404 Not Found" error, it usually means the update server c...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listWindows Terminal Service Unavailable Checklist
When you see 'Terminal Service is unavailable' or 'Remote Desktop Service is currently busy' on a...
Fix Microsoft Store App Version Mismatch Errors
You open a Microsoft Store app and get an error about a version mismatch, or the app won't start ...
Fix Windows Search Not Working in File Explorer
You open File Explorer, type a filename or keyword into the search box, and nothing happens — or ...
How to Fix MySQL Connection Refused Error
When you see "connection refused" while trying to connect to MySQL, it usually means the server i...
Fix OneDrive 504 Gateway Timeout Error Code
If you see a 504 Gateway Timeout error when using OneDrive, it usually means the server is not re...
Topic paths
Quick titles
Resolve Command Prompt pip Permission Denied ErrorHow to Lower RAM Usage in Microsoft TeamsChecklist for Troubleshooting Port Already Allocated on WindowsWindows Search Troubleshooting Checklist: Fix Common IssuesWindows Update Login Loop TroubleshootingResolve Teams Authentication Loop in 5 StepsFix Chrome Profile Not Loading on StartupWindows Search Port Blocked? Stop the Service