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macrumors newbie
Original poster
Jan 11, 2015
Is there a way of making it impossible to create a new user, even if you're the administrator?


macrumors 68040
Mar 21, 2014
It's not possible, as vmachiel offers.

My workaround, used in the small company I own is to create a Standard (or Managed) user account from a single Admin user account, then make the Admin account hidden using Terminal. I have a couple of Macs for my clients' use that just have the Guest user account enabled, with the Admin user account hidden - the KISS principle for their usage needs. offers a pretty good description of the process IMHO. Unhiding an account is also pretty simple.
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