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

OBS Black Screen Troubleshooting Checklist

You launch OBS Studio, start a scene, and the preview shows a black screen. This is one of the mo...

Fix PowerShell 'Service Unavailable Permission Denied' Error

When you run a PowerShell command and see Service Unavailable Permission Denied, it ...

Fix Docker Compose Network Not Found with Permission Denied

If you're seeing errors like network not found or permission denied whe...

How to Reinstall a Chrome Extension Without Losing Data

When a Chrome extension stops working, you might need to reinstall it. But you don't want to lose...

How to Fix 'npm command not found' on Mac

Fix Windows Security Loading Issue with Built-In Repair Tools

If Windows Security (formerly Windows Defender) won't open or gets stuck on a loading screen, the...