Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

If Chrome shows a 502 Bad Gateway error when you try to load your profile, the i...

You've set up a GitHub Actions workflow, pushed a commit, and nothing happens. The workflow doesn...

You open PowerShell and see an error about invalid configuration settings—perhaps a yellow warnin...

You're browsing in Chrome and see a warning like "Your connection is not private" or "NET::ERR_CE...

When you run pip install somepackage and get an error like ERROR: Could not fi...

How to Fix Grayed Out Windows Security Settings
If you've opened Windows Security and found many settings grayed out and unclickable, you're not ...