Windows Security Invalid Configuration Checklist
You open Windows Security and see a message about an invalid configuration. This usually means a ...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listFix Outlook Module Not Found Error 0x80040154
You open Outlook and get an error: 0x80040154 — "Class not registered" or "module no...
How to Fix Microsoft Teams Crashing on Startup
If Microsoft Teams crashes as soon as you open it, you're not alone. This often happens after an ...
Fix Windows Search Token Expired Error 0x80090016
If you see the error “Windows Search Token Expired” with code 0x80090016, it usually means the se...
Fix 'Windows Security App Not Installed' on Windows 10
You open the Start menu, search for Windows Security, and nothing shows up. Or you see a message ...
Fix 'Invalid Configuration' Error in Command Prompt on Windows 10
When you open Command Prompt and see an 'invalid configuration' message, it usually means a setti...
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