Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

If Windows Update fails to check for updates or downloads get stuck, a misconfigured proxy is a c...

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

If you need to update a Windows machine without an internet connection—or you want to control whi...

If you're troubleshooting Task Scheduler jobs that don't run as expected, or if you see stale tas...

You try to connect to a remote desktop, but the session fails with a message about a Group Policy...

You open Windows Update and see updates listed as 'Pending install' but nothing happens when you ...