Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

If you're seeing an error about a security token being expired or configuration being invalid, it...

If you see error 0x80070002 when trying to activate Windows or install updates, it usually means ...

You might see a message like "Windows Update auto-start configuration error" when trying to run u...

If you see a 502 bad gateway error when using command prompt tools like curl, npm, or git, the pr...

After a recent Windows update, you might see a network error when using Windows Search—for exampl...

When you open Microsoft Store and see a 404 error, the app usually fails to load content or shows...