First, I'm confused about how this is considered a default setting. Anytime I've installed a version of Windows that has automatic updates it asks me during the install what my update preferences are. Just because a select menu has something as the default doesn't mean that I'm not consenting when I review that select menu and hit "Next" in the installer.
Windows 8: http://www.eightforums.com/attachments/tutorials/7868d134523...
Windows 7: http://cdn1.alphr.com/sites/alphr/files/styles/insert_main_i...
Windows XP: http://www.dedoimedo.com/images/computers/xp_automatic_updat...
Secondly, this is a commercial product that I am choosing to install. By necessity it has a lot of configuration options that are set to various different values. Is it not implied consent that when I install an operating system that I am agreeing/consenting to all of the different default settings?