Im on windows 7 i didnt know you couldnt turn off windows 10 updates, lol sneaky sons of &%#$@s.
If you have auto updates on Win 7 and Win 8 past a certain point, it seems that they have removed the ability to cut off updates.
However, all versions of 10 won't allow you to turn off updates at all. Home versions won't even allow you to defer them like you can in Pro and Enterprise.
I don't know if they have switched back, but there was a deal to where Pro users had some abilities and they were taken out in the anniversary update. I don't know if they had put them back in or not. That had led to quite a stink.
I do believe that there is a 3rd party program that will block updates in Win 10. Like with all 3rd party programs (particularly of this nature) use at your own risk.
Updating a system is needed in of itself. Systems need to be patched, holes need to be plugged. Problem is, it seems like MS adds more fluff versus substance.
This is why I will not run a new Win OS installed on bare metal. VM with internet denied. To a degree, I can understand issues with updates not working well with all the components when it comes to MS updates. Think of all the hardware/software combinations that are there running Windows. Shoot, even Mac from time to time has problems and they have a much tighter grip on that. It's a mess for sure.