I tried to add a guest account to my laptop and when I restarted the computer, the only login option I have is the Guest Account. Choosing this account restarts the computer into the Safari-only configuration. There is no Systems Preferences available in this mode.
I did not unchoose my administrator account. How did this happen? And how do I get it back?
Best Answer
I think safe mode would work better. Here are the instructions, from the Apple Support website
Once your in, go to System Preferences and disable Find My Mac (iCloud settings) and Guest User (Users and Groups). Reboot. You should be able to login normally. If you would still like a guest user, just go back and enable Find My Mac.