"...but it's access is hidden in 8.1 & 10."
I wouldn't go that far, simply refuse to create one at install time and it fails over to offering a local account. I can live without my calendar needing to be sync'd to "the MS cloud" thanks very much. Plenty of FOSS Windows kit out there that will happily fill the void and is actually usable rather than the Fisher Price school of GUI Design that the Metro designers must have attended to come up with an interface so simple that it's impossible to actually use it without re-learning all you ever learned about using GUI applications!