FIFA 16 Demo launches from September 8th, 2015 on Xbox One, PlayStation 4, PC, Xbox 360 and PlayStation 3 consoles. EA says that the launch of the FIFA 16 Demo varies depending on platform & location and they may change the release date subject without notice.
How to Install:
1) Visit https://www.origin.com
2) Download Origin
3) Install origin and login in.
4) Search FIFA 16 Demo https://www.origin.com/en-ie/store/free-games/demos-betas
5) Download it.