change user name and password

Discussion in 'MacBook' started by phangcs, Dec 29, 2008.

  1. phangcs macrumors newbie

    Dec 29, 2008
    I bought a second hand MacBook. I want to change the "user name" and the "password" set up by the previous owner. I don't have the previous owner's password. How can I do this without re-formating the HD?
  2. SuperSnake2012 macrumors 6502a

    Oct 11, 2005
    Can you log into any administrator account to make a new one? If not, have you contacted the seller for the password? If they won't give it to you, I think formatting might be your only choice.
  3. Sigur macrumors regular


    Nov 4, 2008
    Did he sell you a OS? Then I would say you just reinstall it. Or is there any data on the HD you need?

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