I am on win8 and I have a 160Gb external disk on USB. It comes up as RAW. I tried RECUVA but it would not work. I tried formatting but it is read only disk drive.
Any suggestions would be most welcome.
Try manually assigning a different drive letter to it. Whilst I know how to do that on XP, Vista & Windows 7, I don't have Windows 8 so I can't explain how to do it on that, but if you know how to get to "Disk Management" that's where you do it.