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  1. #1


    Member Since
    Oct 16, 2010
    Posts
    7
    Partition Help!!
    A long time ago i partitioned my drive so i could run windows and all that jazz. Well now i just want the Mac OS. So im trying to repartition my drive and i deleted the other partition but when i go to expand my current one all the way out it says "partition failed could not modify partition map because filesystem verification failed"
    Anyway to fix this problem?
    Thank you so much
    PFC Gabbert

  2. #2

    chscag's Avatar
    Member Since
    Jan 23, 2008
    Location
    Fort Worth, Texas
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    48,479
    Specs:
    Late 2013 27" iMac, iPad 3, iPhone 6s+, iPhone 6+, 3 iPods, El Capitan
    How did you delete the Windows partition? Did you use Disk Utility rather than the correct way of removing it with the Boot Camp assistant?

  3. #3


    Member Since
    Oct 16, 2010
    Posts
    7
    Yes i did. At the time i was a beginner and i was just playing around. But now im stuck!

  4. #4

    chscag's Avatar
    Member Since
    Jan 23, 2008
    Location
    Fort Worth, Texas
    Posts
    48,479
    Specs:
    Late 2013 27" iMac, iPad 3, iPhone 6s+, iPhone 6+, 3 iPods, El Capitan
    OK, that's what I suspected, common mistake, don't worry about it. Let's try this first: Reset the PRAM and then try to run Disk Utility again to expand the partition.

    If that doesn't work, backup all your data (use Time Machine or whatever method of backup you have), and erase, format, and reinstall OS X and all your apps. Lots of work but it may be necessary to get things back in order. Try the PRAM reset first though.

  5. #5


    Member Since
    Oct 16, 2010
    Posts
    7
    awesome i will. i was afraid id have to format the drive and do all that again. thank you so much

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