Windows 10 is said to be the last of the big Windows releases as Microsoft transitions to what is being called “Windows as a service”. What this implies is that throughout the assured support period of Windows 10, 10 years, users will not have to wait for certain moments in order to get updates. No more Patch Tuesdays. Updates to bring in new features as well as fix bugs here and there will be provided, downloaded and installed automatically. One huge benefit of turning Windows to the SAAS model (software as a service) is that eventually the Windows Ecosystem will be less fragmented as everyone updates to Windows 10. Thus from henceforth, Microsoft will require that all updates must be installed. Depending on your Windows 10 license you may either have no choice (Windows 10 Home Edition), or be able to defer updates temporarily (Windows 10 Pro). Users on Windows 10 Enterprise with an extended service contract will be able to defer updates for periods up to a year.
Though it is not advisable, your naivety can be quashed by playing around with the settings. Also, it comes in handy in case you are not a fan of surprise reboots once an update has finished installing and the changes have to be effected.