So I was just going about my business on my laptop and suddenly this thing pops up called Vista Defender, which I have never seen before in my life, and says that my computer is in serious risk and I have like 28 threats. And now it just keeps popping up with all this scary stuff. So I searched this Vista Defender and loads of people are saying that it is actually a virus thing and is just making it all up. I'm so confused and scared, somebody help me.