I recently purchased this hard drive and began installing it under Windows Xp Home edition. I began a partition under NTSF full and when the process was nearly 50% done, the hard drive just turned off. The whole computer had to be turned on again. When it was, the hard drive no longer would work. When I would get back into the setup it would say there was no hard drive to continue installation. I tried hooking it up to another computer. Same result. i tried to reformat it with a boot disk, it wouldn't let me. What happened? Thank you.