Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

You open Windows Security and see a red banner: “Windows Security service is not running.” Or you...

If you're running Windows on a Mac via Boot Camp or a virtual machine and find that Windows Secur...

If Chrome shows an error saying it's unable to open your profile, you can't access bookmarks, his...

You open Windows Defender Security Center or try to run a scan, and you see an error saying a por...

If you're running Windows Defender on a Mac via virtualization or Boot Camp, you may run into iss...

Windows Update error 0x80070005 usually points to a permission problem—Windows can't access certa...