Windows 10 desktop and store should be normal deploy targets. (top right corner in the deploy target window) If you want to deploy to Xbox one, you need to the dev kit from microsoft. You can sign up for one through id@xbox program.
But guess what… you don’t need to do that to test your game on xbox one!! If you build a windows 10 game you can deploy it right to your xbox one! I was blown away by this announcement.