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

How to Fix Git Detached HEAD Error

You run git status and see "HEAD detached at" followed by a commit hash. Thi...

Rebuild Windows Search Index Without Losing Data

If Windows Search stops returning results or behaves slowly, rebuilding the index often fixes it....

How to Restore Missing Windows Taskbar Icons

You open Windows and notice some taskbar icons are gone—maybe the volume, network, or battery ico...

Fix Nginx 502 Bad Gateway on Docker Ubuntu

How to Fix Cloudflare 522 Errors: Connection Timeout Guide

You're trying to load your site and see Error 522: Connection Timed Out. Thi...

Fix Cloudflare Wildcard Subdomain Not Working

If you've set up a wildcard DNS record in Cloudflare (e.g., *.example.com) but s...