i went ahead and disabled the windows update service. i'll keep my eye out for any comments on the KB 3199986 update and play it by ear if and when to enable the update service. it's just that i can't function without access to both of those data files on the nas.
is 1607 the anniversary update? i thought that was released in august. if so, it IS a long time coming my way 
thanks, again, knyte for all your time and effort.
AMD Ryzen 5 5600X CPU. 16GB DDR4-3200MHz RGB RAM. 1TB M.2 NVMe SSD. GeForce RTX 3060 Ti 8GB GPU. Windows 10. ViewSonic & Samsung monitors.