Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

If you see a message that Windows Security has an invalid configuration and can't sync, the issue...

You try to sign in to Chrome and get a sync error. Your bookmarks, passwords, and settings aren't...

If you see error code 0x80070643 when running Windows Security or Windows Update on a dual-boot s...

If Windows Search stops finding files, emails, or apps, the search index may be corrupted or outd...

When you see error 0x80070422 in Windows Defender, the Security Center service or Windows Update ...

If you're trying to use the command prompt on a Mac, you're likely referring to the Terminal app....