Smaller disk size after erasing of data

Discussion in 'Mac Basics and Help' started by Khakpour, Oct 14, 2011.

  1. Khakpour macrumors newbie

    Joined:
    Oct 14, 2011
    #1
    Hi there

    I wanted to make a Boot Camp-partition on my MacBook Pro (250 GB). The reason is, that the university I attend only use Windows-programs. I started The Boot Camp-assistent, and chose a 200/50GB partitioning. After a few minutes the partitioning resulted in an error, stating that the program couldn't move certain files. After a quick google-research I found that I had to backup and erase the disc (Macintosh HD) and make a new partition and re-install OS X on it.
    But having done that, I went to the Boot Camp-assistent again, only to realize that the disc size now is only 227 GB!

    My question is: How come has the disc size decreased and how do i get back to a 250 GB?

    I really hope, that someone can help me, cause I'm quite useless when it comes to computers.
     
  2. simsaladimbamba

    Joined:
    Nov 28, 2010
    Location:
    located
    #2
    How did you do a clean install of Mac OS X?
    What does Disk Utility say and show?
     
  3. Khakpour thread starter macrumors newbie

    Joined:
    Oct 14, 2011
    #3
    I took a complete backup using Time Machine.
    Opened Disc Utility - Erase
    Format: Mac OS extended (journaled)
    Name: Macintosh HD
    and clicked Delete.

    Thereafter I re-installed OS X.
     
  4. simsaladimbamba

    Joined:
    Nov 28, 2010
    Location:
    located
    #4
    Then the size should be okay, so what does Disk Utility say?
     
  5. Khakpour thread starter macrumors newbie

    Joined:
    Oct 14, 2011
    #5
    It says:

    Size: 249,72 GB
    Free space: 228,52 GB

    But when I used Boot Camp the first time, I had 250 GB at my disposal.
    Now it only says 227 GB.
     

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