www.faronics.com here is a company serving a security software deepfreeze, its kind of nortonghost but stronger I believe, there are some hardwares does same job but its cheaper
install deepfreeze into pc and choose harddisk partitions to freeze, recomemnded all drives, and restart your pc
now its frozen, and you cant save any file on it, you can save but each log in it will rollback to frozen point.
you can even install virus or keyloggers and restart your pc, all will be deleted.
in this case, I advice strongly to restart pc each log in to game, incase of you got a keylogger during pc started.
disadventeges, you have to download k2 patches every log in, and you cant save some files, you can disable deepfreeze for temprorary and do your business and activate again, but becarefull during its disabled.
there are some ways to hack it, but never remotely, hacker should have physicall access to pc to do so, means public cafes protected with deepfreeze still not safe.
I hope no one will lose/scammed again by lamers