Stopping windows updates is just setting yourself for the inevitable exploit that is found in which ever version of win 10 you stop on, and which is possibly fixed in the later versions of windows 10 that you didn't get cause you turned auto update off. And Microsoft won't help you as they only officially support the last 2 versions released.
If you on home, its not easy to stop them.
If you on Pro, I believe it is possible but I don't know how. And Microsoft make it harder to do with every new version.