AmiMoJo sends a report stating that Windows 10 Home users don't seem to have any way to disable automatic updates to the operating system. Throughout the testing of the Technical Preview, users noted that this option wasn't available, but it wasn't clear whether that was intended for the full release. Now that the suspected RTM build has been distributed, only two options are available regarding update installation: update then reboot automatically, or update then reboot manually. A quote from the EULA seems to support this: "The Software periodically checks for system and app updates, and downloads and installs them for you. ... By accepting this agreement, you agree to receive these types of automatic updates without any additional notice."
The article notes, "This has immediately raised concerns. Today, if a Windows user finds that an update breaks something that they need, they can generally refuse that update for an extended period. ... For Windows 10 Home users, this isn't going to be an option. If a future update breaks something essential, the user is going to be out of luck." Windows 10 Pro users will be able to delay updates for some period of time, and Enterprise users will have update functionality similar to that of Windows 8.