I am deep in the middle of this. My cat chewed thru 3x2Tb external drive power adapters , 4 USB cables, my home phone line, and my speaker cables over the weekend. Once I started taking things apart I decided to just spend the next days getting it all right. First I have downloaded and bought the partition software. Then I cloned the dual boot system drive to a 1tb MyBook. WhiLe that was going on (7 hours), I drove over to MicroCenter and got a 2TB extreme barracuda internal, and a USB 3.0 drive enclosure. I'm in the middle of cloning the system drive again to the new 2tb drive. Then I plan to try to just swap it for the system drive and see what happens. Meanwhile, the cat is in timeout.