Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

If Outlook stops syncing email, calendar, or contacts after an update or add-in installation, a d...

If you see 'Invalid configuration' or 'Permission denied' when starting Chrome, the browser is us...

If you see a message like “Your profile could not be opened correctly” or “Update failed” when st...

You're composing an email in Outlook, hit Send, and get an error about an expired token. This usu...

If you see a "rate limit" error in Task Scheduler, it usually means a task is trying to run too o...

OneDrive error 0x8004de40 usually appears when you try to sign in or sync files, often after a pa...