As for nVidia drivers: I rolled back to the 1 October version (i.e., 373.06), and the 7.4.4 build is doing fine. The newest drivers aren't folder friendly; I was getting too many "bad work unit" messages.
The [link=mailto:F@H]F@H[/link] website has identified the last two driver updates as "bad," according to their 27 October 2016 message on the homepage.