Yes, that (obviously) worked just as well. Since the Windows Installation did not see the hard drive, I would next make sure the hard drive is securely installed. Perhaps even remove it, check for dust, and re-install it. If it's still not seen, then I would try moving it to your working system and connecting it there as a secondary drive. If it's still not seen, then the drive is bad. If it is seen, then it sounds like the main board of the laptop has died.