Instructions
Turn on the Xbox 360 console and insert the game you want to play from the system's hard drive into the system's disc tray.
Navigate to the "My Xbox" section of your Xbox 360 dashboard and highlight the game you inserted into the system's disc tray.
Press the "Y" button with the game highlighted, highlight "Install Game" and then press the "A" button. Allow several minutes for the game to install to the system's hard drive. Press the "A" button when the installation process is finished.
Highlight the game in the "My Xbox" section of the dashboard and press the "Y" button. Highlight the "Play from Hard Drive" option and press the "A" button to begin playing the game from the Xbox 360's hard drive.