Windows Update has seen a lot of changes on Windows 10. The biggest is a more aggressive approach to getting everyone up-to-date, but Windows 10 will also use BitTorrent-style peer-to-peer downloads for updates.
Many of the included applications on Windows 10 the Microsoft Edge browser and all those other universal apps will be automatically updated through the Windows Store, which is separate from Windows Update.
What You Need to Know About Windows Update on Windows 10
This article answers another question a lot of users in this section have: what about forced Windows Updates installed on metered connections? Well, you'll be able to prevent that.
Windows wont download updates on connections you mark as metered. This ensures Windows wont waste valuable tethering data or other mobile data on updates that can wait until it reaches a solid, unrestricted Wi-Fi network. To prevent Windows from downloading updates on a specific connection, first connect to that WI-Fi network.