If you need to retain access to the original account without knowing its password, this may mess that up. Note that this may result in the new account being logging in automatically when the system is restarted, replacing whatever account may have been set to automatically log in previously.
Remove the Apple Setup Done file by typingĬomplete the setup process, creating a new admin account.
Mount the drive as read-write by typing /sbin/mount -uw / then ↩ enter. (If you end up back on the login screen after a flash of the black screen with white lettering, enter your password and it will return to the black screen.)Ĭheck and repair the drive by typing /sbin/fsck -fy then ↩ enter - as directed by the on-screen text. As soon as you hear the startup tone, press and hold ⌘ + S until you see a black screen with white lettering. You can create a new administrator account by restarting the Setup Assistant:īoot into Single User Mode: Start/restart your Mac.