You will not need to use the Hidden Springs game disc to play the game and will need to continue to use the previous disc that you used to play the game.
(This will be the most recently added item.) If prompted to select a program to open the link, browse to, and select the Sims 3 launcher. Click the download button under the Hidden Springs image.
#The sims 3 hidden springs festival grounds serial key
Follow these steps to install The Sims 3 Hidden Springs.