I allowed Avast to restart my computer now I cannot get into Windows 8.1. I get to the point where I would normally hit enter and nothing happens it seems as if the keyboard and mouse are not working. I can get into the f2 setup mode where the keyboard and mouse work great but past that nothing. I tried plugging another keyboard in and the USB ports are not working either. I tried to boot into safe mode Windows key and I, I am being told no boot device found. All of my college work and boots are stored on this computer. Please tell me there is a fix?