9 Replies Latest reply: May 16, 2014 3:15 PM by rynjwssl
rynjwssl Level 1 (0 points)

I am currently thinking about what my next laptop is going to be after my MacBook Pro from about 2009 finally gives out (still going strong!), and I am in between the 128GB and the 256GB MacBook Air models so I wanted to get an idea of how much space I was using right now. When I use the system profiler I get this result:

Screen Shot 2014-05-16 at 12.23.53 AM.png

Yet when I use MacKeeper's Disk Usage Utility I get this result:

Screen Shot 2014-05-16 at 12.24.27 AM.png

The biggest issue being, why is there almost 50GB of difference in Music alone? This computer has been through every OS since the one it came out with (think it was Snow Leopard), I have always used MacKeeper to keep everything in order and it's been running great ever since. But can somebody please explain where these discrepancies come from and how I can fix them?

MacBook, OS X Mountain Lion (10.8.3), Late-2008 Unibody
  • kevin_ Level 4 (1,535 points)

    Best thing that I can suggest here is get rid of MacKeeper.  MacKeeper is known to report issues that arent there so that they can get people to pay for the full version to fix a non existant problem.

  • Terence Devlin Level 10 (137,920 points)

    That engineer post is spam, ignore it.


    The makers of MacKeeper are currently being sued in two class actions for deceptive business practices - like reporting non-existant problems and making promises about their app that it doesn't deliver on - so you migth want to ask yourself if you actually should trust anything that app reports.


    Get rid of it.

  • Linc Davis Level 10 (192,431 points)

    Remove "MacKeeper" as follows. First, back up all data.

    "MacKeeper" is a scam with only one useful feature: it deletes itself.

    Note: These instructions apply to the version of the product that I downloaded and tested in early 2012. I can't be sure that they apply to other versions.

    If you have incompletely removed MacKeeper—for example, by dragging the application to the Trash and emptying—then you'll have to reinstall it and start over.

    IMPORTANT: "MacKeeper" has what the developer calls an “encryption” feature. In my tests, I didn't try to verify what this feature really does. If you used it to “encrypt” any of your files, “decrypt” them before you uninstall, or (preferably) restore the files from backups made before they were “encrypted.” As the developer is not trustworthy, you should assume that the "decrypted" files are corrupt unless proven otherwise.

    In the Finder, select

    Go Applications

    from the menu bar, or press the key combination shift-command-A. The "MacKeeper" application is in the folder that opens. Quit it if it's running, then drag it to the Trash. You'll be prompted for your login password. Click the Uninstall MacKeeper button in the dialog that appears. All the functional components of the software will be deleted. Reboot.

    Quit MacKeeper before dragging it to the Trash.

    Don't empty the Trash. Let MacKeeper delete itself.

    Don't try to drag the MacKeeper Dock icon to the Trash.

  • rynjwssl Level 1 (0 points)

    I was not aware of all of these issues with MacKeeper so thank you all for bringing that to light for me. However, that is not my primary concern for this post. I forgot to mention in my original post that my actual storage amount for music IS 13.6GB and not 63GB, so in this case MacKeeper is right and System Profiler is wrong. Or perhaps there are backups or cached versions of my music library saved somewhere? I really want to get the most accurate storage numbers

  • Allan Eckert Level 9 (50,709 points)

    Then get rid of MacKeeper. As long as you have it installed you are not going to get accurate information

  • rynjwssl Level 1 (0 points)

    I completely removed MacKeeper from my computer. The issue still remains however, 63GB in system profiler yet my iTunes Library only takes up ~13GB?

  • cbs20 Level 4 (2,785 points)

    Look at your user Music folder not just the iTunes Library. This also depends on how you have your iTunes set up.

  • Linc Davis Level 10 (192,431 points)

    For information about the Other category in the Storage display, see this support article. If the Storage display seems to be inaccurate, try rebuilding the Spotlight index.


    Empty the Trash if you haven't already done so. If you use iPhoto, empty its internal Trash first:


    iPhoto ▹ Empty Trash


    Do the same in other applications, such as Aperture, that have an internal Trash feature. Then restart the computer. That will temporarily free up some space.


    According to Apple documentation, you need at least 9 GB of available space on the startup volume (as shown in the Finder Info window) for normal operation. You also need enough space left over to allow for growth of the data. There is little or no performance advantage to having more available space than the minimum Apple recommends. Available storage space that you'll never use is wasted space.


    When Time Machine backs up a portable Mac, some of the free space will be used to make local snapshots, which are backup copies of recently deleted files. The space occupied by local snapshots is reported as available by the Finder, and should be considered as such. In the Storage display of System Information, local snapshots are shown as  Backups. The snapshots are automatically deleted when they expire or when free space falls below a certain level. You ordinarily don't need to, and should not, delete local snapshots yourself. If you followed bad advice to disable local snapshots by running a shell command, you may have ended up with a lot of data in the Other category. Ask for instructions in that case.


    See this support article for some simple ways to free up storage space.


    You can more effectively use a tool such as OmniDiskSweeper (ODS) or GrandPerspective (GP) to explore the volume and find out what's taking up the space. You can also 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. Note that ODS only works with OS X 10.8 or later. If you're running an older OS version, use GP.


    Deleting files inside an iPhoto or Aperture library will corrupt the library. Any changes to a photo library must be made from within the application that created it. The same goes for Mail files.


    Proceed further only if the problem isn't solved by the above steps.


    ODS or GP 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.


    If you have more than one user account, make sure you're logged in as an administrator. The administrator account is the one that was created automatically when you first set up the computer.


    Install the app you downloaded in the Applications folder as usual. Quit it if it's running.


    Triple-click anywhere in the corresponding line of text below on this page to select it, then copy the selected text to the Clipboard by pressing the key combination command-C:

    sudo /Applications/OmniDiskSweeper.app/Contents/MacOS/OmniDiskSweeper
    sudo /Applications/GrandPerspective.app/Contents/MacOS/GrandPerspective

    Launch the built-in 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.


    Paste into the Terminal window by pressing command-V. You'll be prompted for your login password, which won't be displayed when you type it. You may get a one-time warning to be careful. If you see a message that your username "is not in the sudoers file," then you're not logged in as an administrator.


    The application window will open, eventually showing all files in all folders, sorted by size. It may take a few minutes for the app to finish scanning.


    I don't recommend that you make a habit of doing this. Don't delete anything as root. If something needs to be deleted, make sure you know what it is and how it got there, and then delete it by other, safer, means. When in doubt, leave it alone or ask for guidance.


    When you're done with the app, quit it and also quit Terminal.

  • rynjwssl Level 1 (0 points)

    Thank you Linc, by downloading OmniDiskSweeper I was able to determine where the excess storage was. A lot of leftovers from old deleted applications, managed to remove over 50GB of waste.