My sister-in-law wants me to sort out her PC which is infected with this Vista Security 2013 rogue virus. I am a Mac person and so am pretty unfamiliar with Windows, though can follow instructions as well as anybody else. I've googled this virus and come up with all sorts of sites that want me to download other software to remove this virus, but I have no really good way of telling which of these site are valid in themselves. Can anybody point me to a good and reliable set of instructions? I'm comfortable removing registry entries etc as long as I can trust the steps I am following.