The title says it all. I have searched, and can't seem to find a situation exactly the same as mine. I have Paragon NTFS installed, so OS X CAN write to NTFS drives (namely my Boot Camp partition). I do not have any antivirus on Mac, as it is simply a waste of system resources. I DO have MSE installed on my Boot Camp partition (which is running Windows 7 64 bit by the way). Could I inadvertently pick up a virus in OS X and have it somehow infect my Boot Camp partition? Any knowledge would be much appreciated.