HELP! I BELIEVE A VIRUS ATTACKED ME! I CANNOT OPEN MY FILES. When I try to open any file on my computer, I see that window asking how do i want to open it. and then I can’t, no matter what program I do select to use! What has happened? by the way, my files are renamed, too! For example, like this: IMG_7897.PNG.TTT . WHAT DOES THAT MEAN???!!!!