Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

If the Task Scheduler service won't start, scheduled tasks won't run and you'll likely see an err...

You click 'Check for updates' and see 'Downloading – 0%' for ten minutes or more. This is a commo...

You open Windows Security and see a message like "Windows Defender cannot connect" or "Check your...

If you see 'Sync paused – permission denied' in Microsoft Edge, your profile data—bookmarks, pass...

If you see a 502 Bad Gateway error in Chrome, it usually means the server you're trying to reach ...

When installing or updating software, you might see an error that Windows Defender has locked a f...