Current versions of Microsoft Windows will automatically update themselves.
That's usually great, but they also are designed to update themselves even if the owner of the device wants them to not do that. I could send them a certified letter revoking their authorization to install and run new software on my computer, and turn off all available update settings, and if I don't go turn the computer off it will still get updated when a new update comes out.
Why, legally, can Microsoft (or any other device manufacturer or application developer) control my computer in excess of what I have authorized, but when I do it to their computer, that is "hacking" and I go to "jail"?
Is Microsoft breaking any laws by forcing upgrades to windows 10? asks about Microsoft's Windows 10 rollout specifically, but I am more broadly asking about the standard Windows updates, and about updates or other remote control functions for other devices that do not have a technical mechanism allowing the owner to disable them.