Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

If you're having trouble downloading apps, installing updates, or launching the Microsoft Store, ...

If Windows Security shows a proxy sync error, you may see a warning that security intelligence up...

You see an error that says something like "Windows Update module not found" or "Configuration fai...

You open Outlook and see that your email, calendar, or contacts aren't updating. The sync status ...

If you see a 502 bad gateway error in Outlook, it usually means the server gateway is misconfigur...

If the Microsoft Store isn't loading, won't download apps, or throws errors like 0x80131500, a se...