I would like to utilize Windows using boot camp on my Mid-2010 13" Macbook Pro. I've been utilizing it for a little months utilizing just Snow Leopard. Though, when I try to separate 20 GB utilizing Boot Camp support, I find this message:"The disk cannot be separated since a few files cannot be moved. Backup the hard disk and utilize hard disk function to format it as a only Mac OS Extended volume. Restore your data to the hard disk and attempt using Boot Camp supporter again."This sounds big but is there a easy means to backup?