In my desktop,I got 2 Internal Hard drives, 160 GB and 512 GB. I have my OS in 160 GB HD.
And All My Games of my Important and Big stuff is in other HD.
Whenever I play any game(which is in 512 GB) My PC Lags and Slows down hugely.I used Process explorer to check whats wrong, I found my Hardware and DPCs Interupts increases to more then 50 whenever I use games in 512 GB HD.
Having 2 HDs can cause lag while having OS on one and Applications on 2nd ?
try to enhance your virtual hdd space at you OS (temp, etc) so you may put as much data from the game into your RAM and your Virtual drive...try it ..what do u have to lose?
==================OPEN YOUR MIND=========================