Microsoft Store Authentication Failed After Update: Fixes
After a Windows update, you might see "Authentication failed" when trying to sign in to the Micro...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listFix Windows Search: Connection Refused, Service Not Running
If you see 'connection refused' or 'service not running' when using Windows Search, the search se...
How to Fix Windows Update Version Mismatch Error
If you see a "version mismatch" error when trying to update Windows, it usually means the update ...
How to Fix Windows Search Indexer Version Mismatch
If you see an error like "The search indexer version does not match" or search stops working, it ...
Clear Microsoft Store Cache to Fix Loading Issues
If the Microsoft Store is stuck on a loading screen, won't download apps, or freezes when you try...
How to Fix Windows Defender That Keeps Stopping and Starting
If you notice Windows Defender (Microsoft Defender Antivirus) repeatedly stopping and restarting,...
Topic paths
Quick titles
Troubleshoot Microsoft Store Update IssuesMicrosoft Teams Performance TroubleshootingTask Scheduler Crash Windows 11 Registry FixTroubleshoot Microsoft Store Sign-In LoopHow to Fix Windows Activation Error 0xc004c003RDP Client Server Version Mismatch FixFix Windows Update Error 0x80072ee2: Connection TimeoutWindows Defender Path Not Found: Troubleshooting Checklist