Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

If you're seeing a 502 Bad Gateway error on a site that uses both Nginx and Clou...

You open Chrome and notice your extensions are missing. The extensions page shows a profile error...

If you see an SSL certificate error in Windows Terminal—often when using SSH, PowerShell, or WSL ...

If you see wuauclt: command not found when trying to run Windows Update from the com...

If you've enabled logging in Windows Terminal and the log file stays empty—or never appears—you'r...

When you see error 0x80072efd in Microsoft Store, it usually means the app can't reach its server...