So this started happening yesterday, my computer's been freezing/locking up out of nowhere. I'll hear the windows "device disconnected" sound and shortly after my browser windows will stop responding, same goes for my start menu and just about everything (though strangely I can move my cursor, as well as my firefox windows around). I can't ctrl+alt+del either, nothing happens. At this point I can literally do nothing except force restart my computer. It's been happening about every hour now, again it started yesterday. I haven't installed any new programs or anything. Looking for any help at this point, it's getting very irritating.