Knowledge base for software setup, errors, and daily tool work.

Checklist for Debugging 502 Bad Gateway in Command Prompt

You're working on a web app or API, and you get a 502 Bad Gateway error. The browser just says '5...

Fix Windows Defender Service Not Starting (Error 404)

If you see error 404 when trying to start Windows Defender, it usually means the service executab...

Fix Microsoft Teams Microphone Not Detected in Settings

When Microsoft Teams doesn't detect your microphone in settings, you may see a red X or a message...

Chrome Profile Access Denied vs Corrupted Profile: Fixes

When Chrome refuses to open your profile, you might see an "access denied" message or a corrupted...

Fix PowerShell Network Error 0x800704cf