Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

If you see a message like "You are in 'detached HEAD' state" in Git, it means you...

If your File Explorer (explorer.exe) keeps restarting on Windows 10, you'll see the taskbar a...

If you're on a modern Linux distribution and see error: externally-managed-environment<...

Fix Windows Update Error 0x80070002 After Update
After a Windows Update, you may see error 0x80070002. This usually means the system can't fin...

Docker Compose .env File Not Loading: Common Fixes
You set environment variables in a .env file next to your docker-compose.yml

Fix Windows 11 Update Stuck at 0% – BITS Service Issues
You click 'Check for updates' in Windows 11, and it sits at 0% for minutes or hours. Ofte...