Star Wars Battlefront Beta can't press enter on start screen NVIDIA

This worked for me on Windows 8.1 (although it is irritating, because you have to do it every time):

1. Open Battlefront

2. ALT+TAB

3. Open "My Computer" or "This PC" 

4. On the top right of the window there is a small arrow pointing down (next to the "Help" question mark), click that

5. Click on "Manage"

6. Open Device Manager

7. Find "Keyboards"

8. Right-click on the keyboard you want to use and press "Properties"

9. Go kill some Rebels/Imps and remember not to recommend this Call of Duty game to your friends.