I disabled Windows Update service on my laptop which is using Windows 10. Search for Services, scroll down to Windows Update, disable the service. I live in a country with very expensive data bundles. I simply can't afford to keep Windows Update service on.
We did this for our QA team because of our organization's configuration management policies. Previously Microsoft updates would install broken drivers for their test equipment.
IIRC if you have pro/enterprise you can disable it through a group policy.