Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

If Windows Search shows a version mismatch, you might see errors like “The search service has a d...

If Windows security features aren't working as expected—like Windows Defender won't start, update...

If you're trying to open the Microsoft Store on your Mac and nothing happens—or you see a blank p...

If Windows Update is stuck, failing with error codes, or taking too long to check for updates, a ...

You search for a file by name in the Windows search box, but nothing shows up—even though you kno...

If Windows Search gets stuck on "loading results" or shows a spinning cursor indefinitely, it's u...