Having several thousands systems to maintain definitely qualifies me as real world. Shutting down Windows Update on a corporate LAN is as simple as adding it to your GPO in Active Directory, or requiring a .reg file or secutity template for those without A/D. Speaking of real world you probably don't even know how to perform such trivial tasks due to your refusal to even use Windows, much less support it, leaving your ability to even comment on these subjects being reduced to the equivalent of "spitballs from the back row".
You do realize that noone actually believes anything trolls say don't you? Trolls lie as a part of their trollish nature. I don't use windows because life is simply too short for that kind of aggravation.