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

Fix Windows Update Service Not Running with DISM Restore Health

You try to run DISM /Online /Cleanup-Image /RestoreHealth and get an error saying th...

Fix Wi-Fi No Internet on Windows 11 Without Restarting Router

You connect to Wi-Fi, the icon shows internet access, but browsers say no internet. Restarting th...

Git Push Rejected Non Fast Forward: Troubleshooting Checklist

Docker Desktop Engine Troubleshooting Checklist

When Docker Desktop fails to start or the engine stops responding, the cause is often a misconfig...

How to Fix Git Detached HEAD State and Undo Changes

You run git status and see something like "HEAD detached at abc123". This ha...

Fix Nginx 403 Forbidden: Permission Denied Errors

You're trying to access a site served by nginx, but you get a 403 Forbidden ...