Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

After a Windows or Terminal update, you might see a blank window, crash on launch, or error messa...

When you try to install Windows Terminal using an offline installer, you might see errors about m...

When you see a message like “Windows activation authentication failed” or “license not genuine,” ...

When you see “SSL protocol error” and “connection refused” in Chrome, it means the browser can’t ...

You try to send or receive email in Outlook and see an error: "Proxy authentication failed"

Fix Microsoft Store Sync Issues on Mac
If you're using Microsoft apps on a Mac and notice that your settings, purchases, or data aren't ...