Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

After a recent Windows update, you may notice that the activation process no longer starts automa...

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

If Chrome stops syncing and shows an error about a profile log file, it usually means the sync da...

You're trying to install a Windows update and get error 0x80070643. This usually appears during t...

If you're seeing a 504 gateway timeout error when Task Scheduler runs a sync job, it usually mean...

If Windows Search stops returning files, returns outdated results, or takes too long, the search ...