How to Reset Windows Defender Settings
If Windows Defender (Microsoft Defender Antivirus) is acting up—won't open, shows error messages,...
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1. Reproduce
2. Isolate
3. Apply
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View listFix OneDrive Sync Authentication Failed Error
If you see "Authentication failed" during OneDrive sync, it usually means your credentials are st...
Fix Windows Credential Manager Login Loop
You log in to Windows, and immediately get a prompt to enter your Microsoft account password or P...
Fix Chrome Profile Port Already Allocated on Windows 10
You start Chrome and see an error saying the profile port is already allocated. This usually happ...
Fix Windows Store Error 0x80073cf9: Clear Cache & Repair
You try to install or update an app from the Microsoft Store, and you get error 0x80073cf9. Usual...
Fixing Windows Security Invalid Configuration: Practical Steps
You open Windows Security and see 'Invalid configuration' or the app won't start. This usually ha...
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