Hi, I think i have lost all my work and I don't have a back up, I did not create any back ups. What can I do? I can't believe it, it was all okay yesterday. Now it is all gone I am running mac 10.8.5 The hard drive was 2 tera bytes it had a partition of bootcamp 500gig on it. Perhaps the partition has messed up the mac drive some how Disk utility has changed the HD drive name to disk 3s2 /dev/disk3s2 invalid BS_impBoot in boot block : 000000 Error: Disk utility can't repair this disk. Back up as many of your files as possible, reformat the disk, and restore your back up files It won't allow me to back up my files, the hard drive does not show up HELP ME PLEASE. What are my options. I kind of live in the middle of nowhere there are no mac stores but I need to somehow recover my files please is this possible.