If you get a message that says "override r------- root/wheel for /var/db/.AppleSetupDone?", type in "y" and press enter/return.

You may get an error that says, "rm: /var/db/.AppleSetupDone: read-only file system.

If you don't see a message that says "override r------- root/wheel for /var/db/.AppleSetupDone?", then continue to the next step.