When I try to partition my MacBook (5 GB to Windows), after a minute it says "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 do not know why it is saying this and I do not want to have to go through the trouble of moving everything. Any solutions or answers?