Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

If you're having trouble with the Microsoft Store—apps not downloading, updates stuck, or the sto...

If you see an activation error in Windows, a misconfigured proxy is a common culprit. The system ...

You're trying to add an email account to Outlook, but you get a 'permission denied' error. This u...

If you've disabled real-time protection in Windows Defender only to find it re-enabled after a re...

You open Outlook and see an error: "Outlook file locked by another user permission denied."

How to Fix Microsoft Store Proxy Error
You open Microsoft Store and see a message like ‘Proxy server isn’t working’ or ‘Check your proxy...