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how can you tell what is taking up hard drive space?

122 Views 4 Replies Latest reply: Nov 26, 2012 11:42 AM by Linc Davis RSS
bman99 Level 1 Level 1 (10 points)
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Nov 26, 2012 10:42 AM

how can you tell what is taking up hard drive space? I have about 200gb used, and I have no idea how I have that much stuff.

MacBook Pro, Mac OS X (10.7), 13" Mid 2009
  • mende1 Level 10 Level 10 (89,470 points)
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    Nov 26, 2012 10:43 AM (in response to bman99)

    Open  > About this Mac > More Info > Storage and check the storage data

  • the0pticnerve Level 2 Level 2 (235 points)
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    Nov 26, 2012 10:52 AM (in response to bman99)

    Need more details? Try:


  • Linc Davis Level 10 Level 10 (107,575 points)
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    Nov 26, 2012 11:42 AM (in response to bman99)

    First, empty the Trash if you haven't already done so.


    Use a tool such as OmniDiskSweeper (ODS) to explore your volume and find out what's taking up the space. You can delete files with it, but don't do that unless you're sure that you know what you're deleting and that all data is safely backed up. That means you have multiple backups, not just one.


    Proceed further only if the problem hasn't been solved.


    ODS can't see the whole filesystem when you run it just by double-clicking; it only sees files that you have permission to read. To see everything, you have to run it as root.


    Back up all data now.


    Launch the Terminal application in any of the following ways:


    ☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)


    ☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.


    ☞ Open LaunchPad. Click Utilities, then Terminal in the icon grid.


    After installing ODS in the Applications folder, drag or copy — do not type — the following line into the Terminal window, then press return:

    sudo /Applications/

    You'll be prompted for your login password, which won't be displayed when you type it. You may get a one-time warning not to screw up.


    I don't recommend that you make a habit of this. Don't delete anything while running ODS as root. When you're done with it, quit it and also quit Terminal.


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