Fix Windows Defender 404 Error in Command Prompt
When you try to run Windows Defender commands from Command Prompt and get a '404 Not Found' error...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listBitLocker Auto-Unlock Not Working with TPM: Fixes
You've set up BitLocker with a TPM, and it used to unlock your drive automatically at startup. No...
How to Fix Microsoft Store Rate Limit Errors
You're trying to download or update an app in the Microsoft Store, and you see an error message a...
Fix Windows Defender Threat Service Stopped Startup Type Error
If you open Windows Security and see a message that the threat service has stopped and the startu...
Fix Microsoft Teams Camera Not Working After Update
After a Microsoft Teams update, your camera may stop working. Common symptoms: a black screen, a ...
Windows Defender and Ubuntu: Troubleshooting Checklist
If you're running Ubuntu through WSL or in a dual-boot configuration, Windows Defender can someti...
Topic paths
Quick titles
BitLocker Access Denied After Password Change: How to FixHow to Clear Microsoft Store Cache in Windows 11Fix Windows Update Port Already in Use ErrorFix Task Scheduler Path ErrorsFix Windows Terminal JSON Error After UpdateHow to Resolve Teams 502 Bad GatewayRemote Desktop Drive Redirection TroubleshootingEnable Task Scheduler Service When Disabled by Administrator