Windows 8.1 / 2012r2 has a nice quick access menu with a lot of handy shortcuts. You can access it with Win + X or rightclick on the start button.
It isn’t possible to manage this through policies. If you disable access to certain parts of the OS for users they will still see them in the quick access menu. They just won’t work when you click on them. So I found a way to clean it up with help of AppSense Environment Manager.