Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

After a Windows update, you might click Command Prompt and nothing happens—or it opens and closes...

You might see a Windows activation error saying the license file is locked or can't be written. T...

If you're seeing a 'permission denied' error when trying to install or update apps from the Micro...

If you're stuck at the Windows sign-in screen with an activation prompt that won't go away, you'r...

When Outlook shows a 'connection refused' error, it usually means something on your network or co...

You're installing or updating Visual Studio, and the installer gets stuck on "Finalizing installa...