Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

If you see a '502 Bad Gateway' error in Outlook 2019, it usually means your email server or a pro...

If Outlook stops syncing with your Exchange Server, you’ll likely see errors like “Disconnected” ...

When OneDrive throws a "sync failed to start" message tied to a configuration error, the app usua...

If you see 'OneDrive sync service unavailable' when trying to sync files in Office 365, the sync ...

When you see "Windows Activation Service not starting" with a "permission denied" error, the serv...

OneDrive stops syncing, files show errors, or the app won't open. This checklist walks through co...