Booting into UBCD4Win -- can't see C: drive?

[Scam]

Following this thread I have created an UBC4Win. I'm booting from it, but when running any AV/tools etc.. it doesnt seem to detect anything wrong with the system.

If I go into My Computer (when booted into UCD4Win) i cant see the C: drive or anything to do with the 'real' system. All i see is the following:

My Docs
B: RAM Disk
C: Removable Disk (nothing)
D: Removable Disk (nothing)
E: Removable Disk (nothing)
F: Removable Disk (nothing)
G: CD Drive
X: CD Drive

I may be wrong, but shouldnt i be able to see the C: drive etc.. so that the AVs and anti-malware utilities can scan the 'real' system?

 

[Scam]

Right. I've just tried the boot CD on another PC and it can see the C: drive. Now i'm wondering why it cant see the drive on the PC i need to sort out? Is it maybe because it's SATA?