Partitioned MacBook PRO H.D. can't find Mac OSX

Discussion in 'Windows, Linux & Others on the Mac' started by Bob Mac, Apr 10, 2012.

  1. Bob Mac macrumors newbie

    Apr 10, 2012
    Hey Folks, Thanks for any assistance!

    I just partitioned my MacBook Pro hard drive & istalled windows 7.

    When the computer boots up Windows is running. I may have formated/errased the dirve with Mac OSX!!!

    How can I verify if it's still on the hard drive???
  2. MacDawg macrumors Core


    Mar 20, 2004
    "Between the Hedges"
    Reboot and hold down the option key to choose your OS
    Or go to System Preferences and set your Startup Disk once you get in
  3. parapup macrumors 65816


    Oct 31, 2006
    Shutdown the computer, start it up while holding left Alt key - if OS X is still there you will see it alongside Windows as a choice for booting.

    Otherwise if you installed Boot Camp in Windows - start the Boot Camp Control Panel from task bar and look at the startup disk tab - it should show up there if it exists.

    If it's gone - well you will need your OS X install disks if your computer shipped with one or you will need another Mac to download Lion and make a USB installer.

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