I've successfully gone back to 372.70 on 4 of my machines with Win10 Pro 1607 and Intel cpus. The 5th machine is still at Win10 Pro 1511 (which does not have ability to modify group policy to prevent driver updates) and won't update to 1607 (don't know why) so it's forced to update to the hotfix driver from Msoft.
However..
All 5 machines are currently running within 95% of their previous PPD averages prior to when this all began. I have occasional failed WU's but when I stop overclocking they behave. I don't have the time to dig into the logs of 5 machines to try and figure this out but at least I wanted to share my experience.
If you look at my historical chart, my issues began on 2/3 and did not recover until 2/21, when I was finally able to implement the configurations described in the first paragraph.
http://folding.extremeoverclocking.com/user_summary.php?s=&u=673044I don't know why the one AMD CPU machine is fine with the hotfix driver; is it because of the AMD CPU (I only do Gpu folding so it's just running the OS) or is it because it's on Win10Pro 1577?
I don't know why some of my Gpus (960s, 970s, 980s, and a 750ti) will have intermittent crashes when overclocked. It wasn't a problem before this mess. It's only 2 970s and the 980 Classified that have the issues. Never used to have issues while overclocked prior to 2/3.
All I know is I've returned to stable results that are nearly what they were before this all started. I'm not touching anything and will see how stable they'll remain for the longer term.
Oh yeah; I'm running the 64 bit version 7.4.15 FAH client on all machines.