MacOS – Sign in to ** to update application for that account

mac-minimacos

So I somehow grabbed my parents USB thumb drive to install Mountain Lion. Now when I want to upgrade to Mavericks, its asking me to sign into my parents icloud account.

So I rebooted, did an Internet Recovery, and it installed a clean version of Mountain Lion. It's prompting me again still.

How can I re-associate my Mac Mini to my icloud account?

Best Answer

these are sort of "nuke from orbit" directions; there's likely a less extreme way, but this should work:

  • shutdown
  • boot to single-user mode by holding down ⌘ command-s on boot

  • enter these commands at the console

    fsck -fy
mount -uw /
rm /var/db/.AppleSetupDone
shutdown -r now

  • run through the Setup Assistant creating a new administrator account

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