While not very detailed, here is Noel's explanation for the need to update Windows http://forum.cakewalk.com/FindPost/3433240

Thks .... It seems like it the kb uses and important update that is not on my laptop ... Will try to keep both systems in parallel states .... Really not pleased to go in this adventure specially since i use my laptop for cours ...never had one issue , system rock solid , windows upadtes disabled on both ....