Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

If you see a rate limit error when using Windows Search or the search feature stops working entir...

You click to open Windows Defender Security Center and see a 404 page, or the Settings app shows ...

When Windows Update fails on a managed workstation, the first step is to isolate the cause. Use t...

If Outlook stops connecting to your Yahoo Mail account, you're not alone. This usually happens af...

You open Windows Defender, but it stays on a loading screen with a spinning circle—often stuck on...

You may see a 502 Bad Gateway error when using Windows Search, especially if you rely on web sear...