Then switching back to the app will restart and resume the last session without you even noticing. For example, if you were to have a X number of apps running, the OS will automatically close them in your behalf to free up system resources as needed –all without losing any data –. Metro designed apps are fully controlled by the operating system. Windows 8 apps are being build to work much like phone apps work - always running and never be shut down by the end-user –.
