On certain classroom/lab computers, on certain “field laptops”, and on dual-boot mac/windows configurations we may want to prevent Windows updates from running.

With Group Policy, this can be done in:
Computer Configuration\Administrative Templates\Windows Components\Windows Update
You must “Enable” this policy to have it enforced on the clients.

For more information see:
http://www.howtogeek.com/224471/how-to-prevent-windows-10-from-automatically-downloading-updates/