cant erase partition

Discussion in 'Windows, Linux & Others on the Mac' started by moss99, Nov 19, 2011.

  1. moss99 macrumors newbie

    Nov 19, 2011
    Hi all
    I am trying to install boot camp on my macbook pro when i try to run bootcamp assistant i get error the startup disc cannot be partitioned or restored to a single partition "The startup disk must be formatted as a single Mac OS Extended (Journaled) volume or already partitioned by Boot Camp Assistant for installing Windows..
    when i open disc utility i seem to have 2 drives one is :640.1 GB samsung H... and the other just says MAC
    I cannot erase the drive 640 .1 GB samsung
    i have snow leopard disc and have no files ofor programmes on the mac i need to keep
    I tried booting from disc and reinstalled osx to mac but still cannot erase the other drive
    Can anyone help ?
    Ps im new to mac (2 days only )
  2. MJL macrumors 6502a

    Jun 25, 2011
    boot from windows install DVD , use the repair and recovery part to get to the command prompt and then use diskpart. Worst case scenario you'll have to wipe the whole HDD with the "clean" command. (Read up on the different switches for the diskpart command)

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