Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

Windows Defender’s real-time protection sometimes gets stuck—either refusing to turn on after bei...

You try to turn on Windows Defender real-time protection but get an 'access denied' message. This...

If Windows Search stops working or you see an error about the indexing service configuration, the...

If you see an error like "Task Scheduler version mismatch" when trying to create or edit a schedu...

If you see a "404" error when Chrome tries to load your profile, it usually means the browser can...

If Chrome shows a 504 Gateway Timeout error and you suspect profile corruption, you're likely see...