Hey, So, a few weeks ago I was using Time Machine to backup my mac. During the process it got stuck -- maybe it didn't, maybe it was just taking longer than usual. Anyway, I stopped it, tried to delete the backup and do it again. As I moved the backup to the trash, it reset my mac. I waited for it to come back on; desktop loaded and then reset itself again. It kept doing this and every time I pugged in the external hard drive. I've since realised that there's was obviously an error with the backup on Time Machine. What I've tried?? I've tried to repair the hard drive using disk utility when the mac starts up, but I don't have time to load disk utility because then my mac restarts. Also tried doing it from recovery mode (it loads recovery mode and as soon as I plug hard drive back in - restarts!). Worth mentioning, also tried to repair the disk in windows, no luck either. Any advice about this issue would be really appreciated. Thanks.