How to Delete Hidden Partitions on MBP HDD...

Discussion in 'MacBook Pro' started by neowillendit, Nov 14, 2009.

  1. neowillendit macrumors member

    neowillendit

    Joined:
    Oct 7, 2009
    #1
    Wut up Mac Peeps, pretty advanced Mac user and I just can't figure out how to delete the hidden partitions that Windows 7 creates. I've installed Windows 7 twice on this HDD with Leopard v.10.5.8 on it and now I have 2 small partitions at 200MB each. This means 4 partitions (1 for Leopard, 1 for Windows 7, and 2 hidden partitions). They don't show up in Disk Utility and I tried removing the entire BootCamp partition, then re-installing Leopard just so that I could configure the HDD to "One Single Partition" with Disk Utility on the Leopard Disc while re-installing and THAT didn't work for the hidden partitions either...:(...couldn't believe it...

    I'm hoping I don't have to use a Windows DOS Boot Disc to format or something...not sure if they work on MBPs but I would try...I could also use Seagate HDD Tools but I'm trying to keep this simple...**(hopes Apple thought of this)**

    Please help friends...
     
  2. neowillendit thread starter macrumors member

    neowillendit

    Joined:
    Oct 7, 2009
    #2
    Come on guys, I know someone knows this...:confused:


    EDIT: I should add that I know where the 200MB partitions came from and what they are used for...problem is that when I attempt to re-install Windows 7 RTM, it won't allow me to delete the older 200MB partitions.

    Thank you friends...
     
  3. rockstarjoe macrumors 6502a

    rockstarjoe

    Joined:
    Jun 2, 2006
    Location:
    washington dc
    #3
    Do you mean the 200 MB EFI Partition that is created when the disk is formatted as a GUID partition table? You have more than one?
     
  4. neowillendit thread starter macrumors member

    neowillendit

    Joined:
    Oct 7, 2009
    #4
    Yes, right now I have two of them because I've installed Windows 7 on my MacBook Pro twice now...apparently the Windows Insaller doesn't delete the old partitions...
     
  5. rockstarjoe macrumors 6502a

    rockstarjoe

    Joined:
    Jun 2, 2006
    Location:
    washington dc
    #5
    So if I understand you correctly, you have 4 partions:

    1) Mac OS X partition
    2) Corresponding 200 MB EFI partition for Mac OS X
    3) Windows 7 partition
    4) Corresponding 200 MB EFI partition for Windows 7

    right?

    Sorry but I don't know if you can safely delete the small EFI partitions... the system does not use them for anything but they are a part of the GUID partition standard and I'm worried that by removing them you could cause unintended problems... But I am not an expert so maybe someone else could chime in?
     
  6. neowillendit thread starter macrumors member

    neowillendit

    Joined:
    Oct 7, 2009
    #6
    I'll take your warning and not mess with them then, thank you "Rockstarjoe" :apple:
     

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