1. Turn on your Xbox 360 console. A full screen menu will appear with four options. Push "Right" on the d-pad to navigate to the settings tab.
2. Highlight "System Settings" with the d-pad on the controller. Push the "A" button.
3. Scroll down to the "Memory" option. Push the "A" button to select. A window with your hard-drive space information will appear.
4. Press the "Y" button for the "Device Options" screen. You have the choice of renaming or formatting your hard drive. Use the d-pad to move down to the "Format" selection. Press the "A" button. Wait approximately 30 minutes, depending on your hard drive size.
