I don't currently use a mac but after multiple issues with my three month old PC (mostly hardware and stupid tech's) I think I have seen the light and shortly be picking up a MBP. I'm pretty sure this is a no but thought to ask anyway as I will have to keep windows for a few programs and maybe games. If I have windows running say through parallels or whatever and it gets a virus or Trojan can it go over into OSX? will it infect files on the Mac partition? Would it stay on the windows partition? I assume I would need to make a small partition for windows OS?