Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

You open Outlook in Microsoft 365 and see a '404 Not Found' page. This usually means Outlook can'...

If Windows Defender shows an error saying it cannot connect to Windows Update, it usually means t...

When you click the Microsoft Store icon and nothing happens—or it flashes and closes—it's usually...

You open Microsoft Store, try to download an app, and see a 502 Bad Gateway erro...

You're trying to connect to a remote desktop, but the connection times out before you can log in....

If you see a 502 Bad Gateway error when trying to access OneDrive, it usually means the server re...