You should find it in the all apps screens, bottom left of the start screen in metro will take you to the all apps. If I remember right it should be with xbox games and you may find it if you have the xbox tile on the start.
2 x Samsung 250GB SSD 840 EVO (OS / Other)
1 x Kingston 120G HyperX SSD (Swap)
3 x Seagate SATA III 2TB Barracuda (Data Drives)
1 x Seagate SATA III 1TB Barracuda (Media to XBox)
1 x W/Digital SATA II 300G VelociRaptor (Image)