1. Adobe Reader is recognised just as Willy2 said.
2. Maybe everyone have them but I guess no one use them.
Live stuff. Only messenger live is used actively. But what could you clean from there?
Media Center. Ah no.. its anything but a media center.
Movie maker. If anyone wants to create a movie.. movie maker is not the neccessary app for that.
Anyway, you are free to write some ini for yourself.