I have a friend's hard drive here that was in an external case (it was a WD My Book or My Passport) that he could no longer see from within Windows. He tore the external case apart and took out the WD Caviar Green 1TB (WD10EADS) that was inside of it in a bid to bypass the USB to SATA converter, believing it to be the problem. Well, I stuck it in my machine, went to the BIOS/UEFI, saw it, then booted from an Ubuntu 12.04 live USB. Inside Ubuntu, it wasn't visible, but my own internal hard drive was. So I rebooted again and booted from my internal hard drive with Windows 7 installed. During startup, it loaded device drivers from the drive, but I still couldn't see it in explorer. I also checked in the virtual disk manager in Computer Management and nothing was present. Thoughts? Next steps? Thanks in advance.