trust you? why would i do that mate, i dont even know you lol. The thing your missing here is that the HDD is connected because the OS is seeing it. Now theres no other wire that i know of that would make 170gb of his disk go missing.
Not that I can tell. It says the hard drive is there. So something must be able to read it.
I downloaded EVEREST to make sure I wasn't hallucinating on the drive space, and it's saying the exact same thing the C Drive Properties is saying: 30 GBs total, 10.1 GBs free.