There are so many mischievous people out there with too much time on their hands and the will to ruin others lives! That is really unfortunate. I download files to my computer and then transfer the files, right away, to an external hard drive. So far, so good. Good luck with your rebuild and replacing lost files!!
Oh Kezza I am so sorry for you.
There have been a lot of warnings about this virus, especially associated with facebook.
I do hope your son can restore your pc.
Oh Meg, I am not on facebook and having said that I still have not seen your place yet either....ho hummmm