Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

You're running a GitHub Actions workflow and it fails with a permission denied error...

You see error 0x800704ec when opening Windows Defender or Windows Security. The message says auth...

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

You open Command Prompt, but instead of the usual prompt, you see a blank window or a loading cur...

OneDrive error 0x8004def5 usually appears when the sync client can't authenticate or connect to M...

If Windows Defender won't start or you see warnings that it's turned off, the underlying service ...