Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

When you run nginx -t and see "test failed" with a server block error, it us...

When you run npm install or yarn install and see an error like en...

Windows Update Service Not Running in Windows 11: Fix It
If Windows Update won't start and you see an error like "Windows Update service is not ru...

Fix VSCode Git Auth Failed: Expired Token
You're working in Visual Studio Code, try to push or pull, and see an error like "Git: Au...

Fix Windows Search Indexing High CPU Usage
If your computer's fan spins up and Task Manager shows Windows Search using a lot of CPU, the...

Fix Nginx Redirect Loop After SSL Setup
You've set up SSL on your Nginx server, but now visitors get stuck in a redirect loop—HTTP→HT...