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

How to Merge a Git Detached HEAD Back to Master

If you see a message like 'You are in 'detached HEAD' state' after checking out a...

Windows Defender Real-Time Protection Registry Fix Guide

If Windows Defender real-time protection won't turn on or keeps turning off, a registry fix c...

Fix pnpm ERR! Cannot Find Module – Practical Steps

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...

Nginx Redirect Loop: Common Causes and Fixes

You set up a redirect in nginx, but now your browser shows 'redirect loop' or 'too ma...

Fix Nginx Upstream Connection Refused & Upstream Not Found

When you see upstream connection refused or upstream not found in your ...