Check under the Disk Management tool. It should show that you have ~171GB of unpartitioned space. Partition that space and format it and the rest of your HDD will show up.

If you get The device, \Device\Harddisk0\DR0, has a bad block, Event ID 7 on your Windows computer, follow the solutions mentioned below. Use Macrorit Disk Scanner to scan Hard Disk for Bad Sectors ...

Hey Guys-<BR><BR>I've got a hard drive that I know to be borked...the nasty single clicks during drive detection were the first tip off ;-)<BR><BR>It does detect eventually...sort of. It comes up as a ...