Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

If you're troubleshooting a Microsoft Store issue and find that the log file isn't being created ...

If you’re trying to activate Windows 11 on a PC that has no internet connection—either because of...

If you're seeing a '404 Not Found' error in Command Prompt, it usually means the file, command, o...

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

If Chrome is using excessive memory and then stops working—freezing, crashing, or becoming unresp...

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