What PC this is, the OS, what antivirus and scans you performed and if you keep up with the usual canned air cleanings.
I am not really good with computers, but all i know is that every few hours my keyboard stops working. It is still glowing but i cant type anything. After unplugging it and plugging it back in it goes black and doesn't work. My mic/webcam and mouse are fine until I unplug them too, they also stop working. At this point I restart and everything is normal for another few hours, then the same happens. I have a Raser Deathstalker Keyboard and a Logitech webcam and mouse. I don't know if this is a virus or just a broken driver. Any help would be appreciated.