Honestly, if you're going to take all the time to get "techie," don't ruin it by putting Poser on any partition, sharing with other software. Give Poser the biggest hard drive you want to buy, and Poser will always thank you. You'll grow into it as well. As an aside, I've never fiddled with Virtual Memory, even when I got the Insufficient Disk Space to Render error. I just put Poser on its own hard drive, and that was the final solution.