Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

When you try to activate Windows and see an error that the activation service is not responding, ...

If you're seeing a 502 Bad Gateway error in Chrome, and other browsers work fine...

If Outlook is taking too long to open, send emails, or search, it's usually due to one of a few c...

After a Windows update, you might click the search bar, type a query, and see nothing but a spinn...

Outlook fails to start, freezes on the loading screen, or crashes immediately. This checklist wal...

If you're using Microsoft Teams on Ubuntu and the audio isn't working—no sound during calls, micr...