I am worried about my computer. In fact, I am afraid that I got hacked by some hacker who installed a virus on my computer! See, I cannot open any of my files anymore. My files have double extensions now, for example, jpg.locked, or .mp4.locked, or .avi.locked. I have also found some text file written in french (I believe so, but I am not sure). Maybe you know what I am talking about? Please help…