Things You'll Need
Instructions
Insert your external hard drive unit into the USB slot located on your Xbox.
Turn on your Xbox. Using the right joy stick, scroll until you reach the "System settings" menu. Press "A" to bring up the settings menu.
Scroll down and select "Memory." Select "HDD" and then select a saved item. Select "Copy." The Xbox will ask you to choose a location to copy the item to; select your external hard drive unit. Repeat for each saved item found on your Xbox's memory unit.
Remove your external hard drive and insert your upgraded hard drive. Now reinsert your external hard drive. Then select "System settings" and select "Memory." Select your external hard drive and select each copied file. Then select "Copy" to transfer your files onto your new, Xbox 360 hard drive.