Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

If you see 'npm' is not recognized as an internal or external command in Command Pro...

If you notice that Windows Security (formerly Windows Defender) isn't starting automatically with...

You're running a command-line tool behind a corporate proxy and get a 504 Gateway Timeout

Fix PowerShell Reset Settings Not Syncing
After resetting PowerShell settings—by deleting profile files, running Reset-Settings

Fix OBS Black Screen After Game Capture Setup
You set up a game capture source in OBS Studio, but the preview shows a black screen. The game ru...

Fix PowerShell Token Expired Error 401
If you're seeing a 401 status code with a message like "token expired" in PowerShell, it usually ...