I noticed that after the update, it changes the 'choose how updates are delivered' settings. It sets it so future windows updates are set to now download over other peoples PCs again . I know I had previously disabled this on my PCs, but they re-enabled it. Ironically I had to reenter my password to disable it disabled it again, yet Microsoft re-enabled the setting to enable it without my permission with the update. You really have to watch this sort of thing.