on home version you cannot.
on pro version you can sort of turn it off, but its not the same as what you can do on win 8.1 and 7, and in addition you have to use an extra tool to skip updates you dont want, a messy process on the whole. Also I think the new threshold builds are not skippable if you value security as microsoft stop supplying security updates to obsolete builds.
Maybe one day microsoft will sort all this out, but until then I wont be using it on my main rig or laptop. The privacy leaking stuff doesnt bother me near as much, its the updating system on it I dont like.