1. iMore Question's Avatar
    I'm trying to reset my Mac, I have got to the screen where you choose the disk file and I would to erase it but the erase button isn't allowing me to erase it
    10-24-2014 04:57 PM
  2. bamf-hacker's Avatar
    You can't erase the active partition if you are logged into the Mac.

    Reboot and go to the recovery options by holding Command and R when the Mac is booting up. From there you can get to disk utility and work on the hard disk.
    10-24-2014 06:04 PM

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