Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

You're trying to download an app or update from the Microsoft Store, but you get an error about r...

You try to send or receive email in Outlook, but it says it cannot connect to the server. Usually...

If your Windows Search returns no results or shows an empty list even though files exist, the sea...

You try to install Microsoft Teams on your Mac, but the installer fails partway through or throws...

Windows Update error 0x80070002 usually means the update files are missing or corrupted. It often...

If Edge is crashing, running slowly, or not syncing correctly, start with this checklist. It cove...