Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

You've performed a clean boot to troubleshoot a problem, and now Windows reports an activation er...

If you're having trouble with the Microsoft Store—apps won't download, updates fail, or the store...

You see error 0x80070643 when trying to install a Windows update, and the setup fails partway thr...

If you see a 502 Bad Gateway error when a scheduled task runs, it usually means ...

If you see error 0x8024402c when checking for Windows updates, it usually means the update servic...

You click "Check for updates" and see error 0x80072F0D or a message like "A certificate chain pro...