I remember the first time i had a fake anti-virus virus, i was something like 8, and i didn't loving know about the "Copy Image URL" or anything like that, so I saved and downloaded all images that i posted on this forum 'then, and I was saving this portal photo of cartoon chell hugging a companion cube, and this fake anti-virus showed up showing thousands of trojans and trojan horses, so, being the idiotic kid i was, I did something, I guess I hit the "Remove viruses" button two times I think, the first time I saw a window pop-up for a second saying stuff like "Installing /somestuffhere/stuffhere/something.exe" I thought there was something wrong with it, so I hit the "remove viruses or whatever" button again, and the same window popped up, then after a while the laptop just forgeted itself and crashed, it's working again, and virus-free.