Can anyone suggest anything to stop a virus getting into your pc, I managed to get it back on yesterday, but not sure how, or if it was just pot luck, now I cant post replies or anything on FB, so it looks like it is about to do it again,so would like to catch it in time, and can you do it off line, my daughters has done the same thing, and a message comes up on hers saying about your brother, sister, mother etc, and wont allow you to click on anything,and says stuff about trojans and worms, !!!!!!! any advice would be good, cheers.