I disabled Win10 updates over 1.5 years ago with zero issue. Security people love to claim the sky is falling, but it's all about risk/reward. Risk of issue due to actual exploit is pretty low for most people, so even though the potential IMPACT is very high, because the probability is so low compared to the constant irritation of Microsoft arbitrarily forcing whatever they want down your throat once a month, they just deal with it and shut off updates.
edit: downvote if you want, I'm not wrong.