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

Fix OBS Black Screen with No Source Detected

If you're seeing a black screen in OBS and the message 'No source detected,' you're not alone. Th...

MongoDB Authentication Failed: Administrator Checklist

Docker Compose Container Exited with Code 1: Causes and Fixes

When a Docker Compose container exits with code 1, it usually means the main process inside the c...

Fix PowerShell Not Launching from Start Menu

When you click PowerShell in the Start Menu and nothing happens, or it flashes and closes, it's u...

Outlook DNS Error Checklist – Common Causes & Fixes

When Outlook can't connect to your mail server and shows a DNS error, it usually means the app ca...

How to Unlock a File Locked by Windows Security

You try to open, move, or delete a file, but Windows shows a message like "This file is blocked b...