My mouse freezes, keyboard doesn't work. No program not responding warnings. ctrl alt delete doesn't do anything. Only thing we can do is hard restart. Then everthing is fine until it happens again 15 mins later. Suggestions, advice, help plz. Running windows 10 pro for workstations on Dell precision tower 5820. I use two Kensington trackballs at once because I have a disability and I use the main clicker on my left side. One of them is wireless and has a hard time staying connected which is why I bring it up. Not sure that has anything to do with it though.