How to remove Windows only operating system.

Discussion in 'Windows, Linux & Others on the Mac' started by TheColonist, Mar 22, 2013.

  1. TheColonist macrumors newbie

    Joined:
    Mar 22, 2013
    #1
    I purchased an iMac 20" computer. The previous owner (deceased) formated the hard drive and installed Windows 7 ONLY. I researched and found out I the computer can handle Snow Lepard, but it needs to be installed from OS X. If i purchase the Full Install of Tiger (the original OS), how do I go about installing it? Do I format the hard drive form Windows 7? Not sure what to do. Afraid to do anything for fear of destroying it completely.
    Thanks.
     
  2. TiBook550 macrumors member

    Joined:
    Jan 6, 2004
    Location:
    Atl, GA
    #2
    - Back up any info you want to save from the hard drive.
    - Boot from the Tiger install disc by holding down the C key at startup.
    - At the install screen, select Disk Utility from Applications>Utilities.
    - Select the hard drive in the left column and click the Erase tab.
    - Choose Mac OS Extended (Journaled) as the volume format, rename the drive, check the box if you're installing OS 9 (doubtful) and then Erase.
    - Quit Disk Utility and proceed to install OS X as normal.
     
  3. Acorn, Mar 23, 2013
    Last edited: Mar 24, 2013

    Acorn macrumors 68020

    Acorn

    Joined:
    Jan 2, 2009
    Location:
    macrumors
    #3
    delete the windows partition
    create a new partition osx extended journaled
    then choose options and select GUID partition

    you need to choose options and set up your partition as a GUID partition otherwise the partition will not be bootable from osx.
     
  4. TheColonist thread starter macrumors newbie

    Joined:
    Mar 22, 2013
    #4
    Which OS?

    I don't have the Tiger disks, but I did get the Snow Leopard disk. Do I need to install Tiger first, or can I install SN instead?
     
  5. ddmcnair macrumors member

    Joined:
    Apr 25, 2011
    #5
    Install whatever OSX disc you have. Once installed you can start upgrading the versions. Have fun; keep us posted.:apple::)
     
  6. maflynn Moderator

    maflynn

    Staff Member

    Joined:
    May 3, 2009
    Location:
    Boston
    #6
    The thread is three years old, I'm sure he's already moved on from the issue and there's nothing to keep us posted about.
     

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