Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

You see an error like "Some update files are missing or have problems" or a specific error code s...

You launch Windows Defender Security Center or try to run a scan, and you see a proxy error—somet...

If your command prompt shows the wrong time or date, or if commands like time or

You're trying to send or receive email in Outlook, but you get an error about the SSL certificate...

If you're troubleshooting command-line issues in Windows Terminal, enabling logging can help capt...

You open Chrome and notice extensions are grayed out or show a 'Cannot connect to extensions' err...