with opensource you can do this. but with closed source like from microsoft, that is not automatically given.
In the case of Windows for Warships[0], one of the arguments (if they absolutely had to use Windows and nothing else) might be something like “Dear Mr. Gates, if you don’t empower us to do our job, we can’t guarantee that North Korea won’t retarget our nukes at your face. Sincerely, the Royal Navy.”