I wonder if Win 10 and its very popular Windows Update has anything to do with it. I'm on Win 7 and I have Win update turned off (I'll update when I want to thank you very much) and also disabled Win update from updating or installing any hardware drivers. It it ain't broke don't fix it is my motto with drivers. One very simple thing to try is, after you turn your computer off, to remove and reseat the ram sticks a couple of times. That has solved problems I've had a few times in the past.