I remember the old joke that if cars ran like Windows. Now it's airplanes. The term 'Blue Screen of Death' takes new meaning.
That big blackout a few years ago was a Win thing, although everybody blamed a tree. The fact was that all the monitoring was done with win computers, and they were experiencing the Great Worm. They never knew about the tree until the whole grid blew up.
The planes should run Linux. However, there wouldn't be any drivers for new planes. :)
ps. more and more it looks like software has downed the two planes.