7 Replies Latest reply: Dec 16, 2013 4:35 AM by Barney-15E
davd11 Level 1 (0 points)

hi i have downloaded  OS X Mavericks on set up installation when i click on macintosh HD to install i get a message saying this disc cannot be used to start up your computer can any one advise thanks


iMac
  • Barney-15E Level 8 (46,304 points)

    Open Disk Utility and select the hard drive device (should be the topmost item in the list).

    In the info panel at the bottom, the partition map scheme must be GUID Partition Table.

     

    If it is not, you'll have to re-partition the disk which will erase it completely.

  • Barney-15E Level 8 (46,304 points)

    If it is not the above, take a look at this. It was for Lion, but likely no different for Mavericks:

    http://support.apple.com/kb/TS3926

  • davd11 Level 1 (0 points)

    thanks but i am a new apple user and struggling where to find things could you possibly explain in more detail thanks

  • Barney-15E Level 8 (46,304 points)

    If that mac isn't old, then I doubt it is the partition table.

     

    However,

    Disk Utility is in the Utilities folder inside the Applications folder.

    Here is what you would see:

    Screen Shot 2013-12-16 at 6.22.08 AM.png

    The link I posted has a pretty good set of screen shots to work through some things.

     

    Do you have Boot Camp enabled to boot into Windows?

    Did you ever use that drive as a Time Machine backup drive?

  • davd11 Level 1 (0 points)

    the machine is a second hand 2011 model i have opened applications and utilities but it is empty

  • davd11 Level 1 (0 points)

    i have clicked on time machine but it says not configured

  • Barney-15E Level 8 (46,304 points)

    davd11 wrote:

     

    the machine is a second hand 2011 model i have opened applications and utilities but it is empty

    You may be looking in the wrong Applications folder.

     

    Go to the Finder, then choose Utilities from the Go menu. If that folder is truly empty, there may be more wrong with your Mac that is causing the message you see when you try to install Mavericks.