HERES a simple trick to hide the drives( C/D/E/F) of ur computer.
goto RUN wizard.
1)write there "gpedit.msc"( donot include the " ").
2)then click "administrative template" under user configuration .
3)then click as follows: windows components --then click--windows explorer
4)then click on the option hide these specified drives in my computer.
5)click on enable option. and select the drive u wish to hide.
6)click apply and ok .
7)ur drive is now hidden.
8)check that out in my computer. u wont find ur drive.
9)inorder to retrive ur drive again follow the above steps(1,2,3,4,5) and then select the option donot restrict any drive.
10)click apply and ok and ur drive will reappear.....................
if u have any problem drop in ur queries..below..it will be answered