In current builds of Windows 10 have you have ability disable system downloads via metered connections. This metered connection setting mostly refers to mobile connections but it can also be customized to include select Wi-Fi signals as well.
It’s unclear if the metered connections setting is currently faulty or if it’s actually working the way Microsoft intends and is downloading certain system updates that it deems too important not to install ASAP. Regardless, the company will soon officially begin downloading some system updates while on metered connections anyway.
It’s likely that this is referring to extremely important security updates which usually aren’t too large and must be installed as soon as possible. It’s also possible that most Windows 10 machines already do this and the only change being made is that Microsoft is choosing to better communicate this function limitation with users to prevent them from thinking the setting isn’t working.
The revelation comes via WinSuperSite who found the change while browsing around the new Settings options in Windows Insider build 15058. The new update panel now shows text “automatically download only those updates required to keep Windows running smoothly.”
Thanks for onmsft.