They shouldn&#x27;t be using Windows at all.  Whoever had that idea should be thrown in jail for attempted mass murder.  Keeping Windows off a network doesn&#x27;t make it safe: Stuxnet proved that.<p>Windows has no business being used in any application that is life or safety critical.  Its license even says so.  Doing so should be a crime.  There are much better OSes out there for this kind of thing: just ask anyone who builds jet aircraft.