I get this error message: "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." Does it really mean I have to partition my whole hard drive and then reinstall everything? I'm hoping I'm just misinterpreting.... I have had my uMBP for about two weeks, I boot camped, decided I needed more space for windows, used Winclone to clone my windows partition, merged the windows partition back into OS X, and now I get an error message when I try to repartition. Please tell me there is an easy fix. BTW, my harddrive is 250GB, there is 87GB free, and I am only trying to create an 81GB partition.