So I've been trying to install Windows 7 Ultimate on my MacBook Pro 15" Early 2011 running OS X Lion 10.7.3 and there's been no luck! Every time I go to bootcamp assistant and I try to make the partition for windows it works for a minute and then pops up saying The disk cannot be partitioned because some files cannot be moved. Back up the disk and use Disk Utility to format it as a single Mac OS Extended (Journaled) volume. Restore your information to the disk and try using Boot Camp Assistant again. I've tried a lot of things like repairing the disk, using iDefrag, making my own FAT partition which also fails, and doing a full restore from snow leopard back to lion using the sl disk. I did loose some harddrive space at one point and happened to delete my Recovery HD to see if that would fix the problem, which it didn't, so I just recently reinstalled OS X Lion from the App store and now I have all my harddrive space back and the Recovery HD... I'm just really stuck and have been trying and trying for days to fix this, but there's no luck Please help, Thanks!