Fix Windows Defender 404 Not Found After Update
After installing a recent Windows update, some users find that Windows Defender is missing or sho...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listVisual Studio Installer Configuration Failed After Restart: Fix
After restarting your computer to complete a Visual Studio installation or update, you might see ...
How to Fix Chrome Profile Error Occurred
When you start Chrome and see "Your profile could not be opened correctly" or "Profile Error Occu...
How to Repair Windows Update Using System File Checker
If Windows Update fails with errors like 0x80070002 or 0x800736B3, corrupted system files are oft...
Fix Windows Terminal DNS Error 0x80072746
If you see error 0x80072746 when opening Windows Terminal, it usually means the terminal cannot r...
How to Fix Windows Security Error 0x80070422
You open Windows Security and get error 0x80070422, or see a message that the app can't start. Th...
Topic paths
Quick titles
Windows Update Hangs at 100%: Troubleshooting GuideFix UFW Rules Ignored by Docker ContainersFix npm EACCES Errors on macOS Without Using SudoHow to Fix Windows Search Token Expired in Office 365Fix Windows Activation Authentication Failed Error: License Not GenuineHow to Fix Windows Defender Real-Time Protection Authentication FailedTroubleshooting WinSCP Permission Denied (Publickey)How to Resolve Windows Search Rate Limit After Update