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

How to Restore Missing Windows Taskbar Icons

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

Docker Container Exits Immediately: Fix with Restart Policy

You start a Docker container, it runs for a second, then stops. No error messages, just a quick e...

Python Memory Error When Processing Large Files: Troubleshooting Checklist

You're running a Python script that reads a large file—maybe a CSV with millions of rows, a l...

How to Fix Git Refusing to Merge Unrelated Histories

When you try to merge two Git branches that have no common commit history, Git stops you with the...

Fix Nginx Upstream Connection Refused in Proxy Pass