enter image description hereIn Mountain Lion, my full name is displayed at the bottom of the log in menu. As I want to sell my computer, I was wondering if there is a way to hide this? (it's the only place that you can see it as it is not the user name, and I can't change it in Sharing preferences).

I called Apple support, they told me there's a way to do it via Terminal, but they wanted to charge me for that. I looked up online, but I can't find a way to remove it.


2 Answers 2


Go to System PreferencesSecurity & PrivacyGeneral and uncheck Show a message when the screen is locked

  • It's not the user name what I want to change, and either the computer's name (at least the one showing up on Sharing preferences). I'm tying to upload a picture for you.
    – Matt
    Sep 24, 2014 at 17:11
  • @Matt Ah, I believe I know what you are referring to now—see my edited answer
    – grg
    Sep 24, 2014 at 17:17

Is this in the list of previously logged in users?

If you're selling your MacBook, you should consider re-installing the OS with a clean slate, rather than potentially leaving items behind.

You might find there's still a userid on the computer somewhere; you can remove it by running sudo dscl and then ls /Local/Default/Users to see if the username shows up there. delete /Local/Default/Users/name should get rid of it.

  • It's not a user or my computer's name… I can't re'intall the OS because the guy who is about to buy it wants some software I have already installed. I'm going to upload a picture of the login window.
    – Matt
    Sep 24, 2014 at 17:13

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