Previous 1 2 Next 15 Replies Latest reply: Apr 15, 2012 6:33 AM by wjosten
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I have a 17 inch MBP running Lion and Windows 7 with a boot camp partition. My mac side has 500GB of space, and my windows 7 partition has 250GB. Recently I shrunk my disk space on the windows 7 partition by going to Control Panel->searching "partition" and shrinking it, so now my boot camp partition has 132GB. However, I thought that space was going to be moved to my Mac OS X partition, but it didn't. Where is that memory space? It can't be flat out lost, can it? I also tried expanding it back but I can't click that option. It's greyed out. Help is greatly appreciated, I really do not want to lose those 118gigs. I know it doesn't sound like a lot, but I really need it. Thanks.


MacBook Pro, Mac OS X (10.7.3)
Reply by Shootist007 on Apr 12, 2012 3:55 AM Helpful

You are actually very lucky the system still boots at all. Once you make a BC partition for Windows you really shouldn't fool around with either partition. If anything that unused space is only going to be available to the Windows side as it was originally created by BC for Windows. If you try to move it back to the Mac side more then likely neither OS will boot.

Reply by wjosten on Apr 12, 2012 3:56 AM Helpful

Well, you can't resize the way you did it. You can only take from one partition and add it to the other if they are the same format. Think about it: how can you add NTFS formatted space to a Mac formatted partition or vice versa? Not possible. That's why the space isn't visible to OS X. There are third-party utilities that permit this, but for you, at this point, I suspect starting over will be your only solution: I.E., using Boot Camp to remove your Windows partition, then reinstalling.

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