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

Fix Windows Security App Not Starting on Windows 11

You click the Windows Security icon or try to open it from Settings, but nothing happens. The app...

Fix Docker Volume Permission Denied on Mac

Docker Container Exits Immediately After Start: Network Fixes

You start a Docker container and it exits right away. The container logs show no errors, or the e...

Docker Compose Port Already Allocated: Checklist

You run docker-compose up and get an error like Error starting userland proxy:...