I have a Toshiba Canvio External Hard Drive 3.0 3T. Yesterday i came home got on my computer and the drive no longer was showing up on my computer. I checked the device manager and it shows in that section but when i check disk management it shows the drive in :/J. It gives me an error saying i must format the drive in order for the drive to work but i can't do that because i need the information on the drive. It also is showing that the drive is in RAW format. Any ideas on what i can do to fix this? : /