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  1. #1


    Member Since
    Jun 10, 2012
    Location
    Melbourne
    Posts
    46
    Specs:
    MacBook Pro 2011
    Compressed C Drive
    OK I should have researched a bit before doing something like this :l

    I compressed the C Drive on my Windows partition hoping to save up some space, that was the only drive in the Windows partition. When I switch my Mac off and boot back into Windows, it says the "C Drive is compressed" and to press Ctrl+Alt+Del to restart. The keyboard doesn't seem to work or respond in this mode (this shows up in some commandline-input mode. P.S not familiar with this stuff)

    I tried an external Logitech keyboard (connected by wire), the keyboard still doesn't respond, though this external keyboard works fine in the Mac partition.

    The Windows partition is Windows 7 and the OS X is Mountain Lion 10.8.5

    What are my options? :S

  2. #2

    chscag's Avatar
    Member Since
    Jan 23, 2008
    Location
    Fort Worth, Texas
    Posts
    48,033
    Specs:
    Late 2013 27" iMac, iPad 3, iPhone 6s+, iPhone 6+, 3 iPods, El Capitan
    What are my options? :S
    As you found out, compressed drives are not supported when dual booting from a Boot Camp installation. Go back to OS X, start the Boot Camp Assistant, and tell it to remove the Boot Camp partition. That will restore your hard drive space to OS X once more. Then you can use Boot Camp again to create another partition and reinstall Windows 7.

    I can't even advise you to make a copy of your Windows 7 installation because you have no access to it. Sorry I don't know of another solution. Perhaps someone else may have a better suggestion.

  3. #3

    Slydude's Avatar
    Member Since
    Nov 15, 2009
    Location
    North Louisiana, USA
    Posts
    9,596
    Specs:
    2.8 GHz MacBook Pro 10.11, 8 GB mem, iPhone 6+
    I didn't realize that about the compressed partition. Not much chance of me doing that though. I've been nervous about this type of compression since my early days on a Mac. There was a program at the time that compressed things at the driver level to create more room. When a reviewer pointed out that this had to be done at the driver level I realized the fubar potential.
    Sylvester Roque Former Contributing Editor About This Particular Macintosh

    "Got Time to breathe. You got time for music." Denver Pyle as Briscoe Darling

  4. #4


    Member Since
    Jun 10, 2012
    Location
    Melbourne
    Posts
    46
    Specs:
    MacBook Pro 2011
    remove the whole partition and reinstall Windows?? 0_0

    isn't there anyway to format that partition, similar to a hard drive format on a Windows PC? Or does it not work that way on dual booted Mac? :S

    I don't mind losing data, but I don't want to go through the hassle of reinstalling Windows all over again. :l

  5. #5

    Slydude's Avatar
    Member Since
    Nov 15, 2009
    Location
    North Louisiana, USA
    Posts
    9,596
    Specs:
    2.8 GHz MacBook Pro 10.11, 8 GB mem, iPhone 6+
    Not sure what the solution is to your problem but I don't know a way to format the Windows drive and preserve Windows. When a drive or partition is formatted everything (OS and personal data) is removed.
    Sylvester Roque Former Contributing Editor About This Particular Macintosh

    "Got Time to breathe. You got time for music." Denver Pyle as Briscoe Darling

  6. #6

    MacInWin's Avatar
    Member Since
    Jul 07, 2008
    Location
    Winchester, VA
    Posts
    5,603
    Specs:
    2011 MBP, 2008 iMac, iPhone 6, iPad mini, 13" MBP, AppleTV and two MacMinis
    At the risk of disclosing how really stupid I can be, and with full disclosure that I know absolutely nothing about BootCamp, is it possible to boot from an external drive that has Windows installed and somehow uncompress the compressed partition? Just clutching at straws here, but hey, the OP has nothing to lose but time, right?

  7. #7

    chscag's Avatar
    Member Since
    Jan 23, 2008
    Location
    Fort Worth, Texas
    Posts
    48,033
    Specs:
    Late 2013 27" iMac, iPad 3, iPhone 6s+, iPhone 6+, 3 iPods, El Capitan
    I really don't know if that will work since without a hack Windows will not install to an external hard drive. (Built in piracy protection by MS.) It would be a good experiment to try out though.

  8. #8

    MacInWin's Avatar
    Member Since
    Jul 07, 2008
    Location
    Winchester, VA
    Posts
    5,603
    Specs:
    2011 MBP, 2008 iMac, iPhone 6, iPad mini, 13" MBP, AppleTV and two MacMinis
    Well, if he decides to try, here is a link to a Windows site that shows how to do it.

  9. #9


    Member Since
    Jun 10, 2012
    Location
    Melbourne
    Posts
    46
    Specs:
    MacBook Pro 2011
    sorry about the late reply

    I just erased the Windows partition and reinstalled it, not without a few bumps though :l but all good now

    Thanks for all the replies )

  10. #10

    harryb2448's Avatar
    Member Since
    Nov 28, 2007
    Location
    Nambucca Heads Australia
    Posts
    21,722
    Specs:
    Imac 27" Retina 3.3GHz, 512GB Flash, 16GB memory, OS X.11.4.
    That was the right way ksabee.

    chscag would not put you on the wrong track. All you can do with the Windows partition is change the size if need be using CampTune from Paragon.


    http://www.paragon-software.com/home/camptune/
    Hang on to those original install discs like grim death! Using OS X.7 or later make a bootable USB thumb drive before running Installer!

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