Checklists for software errors, setup, and tool workflows.

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Fix Windows Search 404 Not Found Error via Registry

If Windows Search returns a '404 Not Found' error when you try to open the search pane or run a q...

Fix Windows Search Invalid Configuration After Update

After a Windows update, you might see an error like “Search is not working” or “Invalid configura...

Fix Command Prompt Invalid Configuration After Update

After a Windows update, you might see errors like "The configuration is invalid" or "Invalid comm...

Fix Windows Defender Not Working After Update

After a Windows update, you might find that Windows Defender (Microsoft Defender Antivirus) is di...

Fix 'Command Not Found' When Setting Up Windows Update via Command Line

When you try to run wuauclt, UsoClient, or Install-Module PSWindo...

How to Fix Windows Search Permission Denied Registry Error
When Windows Search fails with a 'permission denied' error in the registry, the search indexer ca...