Instructions
Turn off the Xbox. If applicable, connect the Xbox 360 hard drive and any other storage devices to the Xbox. The hard drive has its own dedicated hard drive bay on the left side of the Xbox, while memory cards and USB flash drives go in their respective ports on the front of the Xbox.
Turn on the Xbox. After the Xbox Guide menu loads, scroll to the "My Xbox" menu. Press the "A" button to select the "My Xbox" menu. The "A" button is used to select all items in the Xbox Guide menu.
Select "System Settings," then "Memory" and "Hard Drive."
Select the category that best represents the type of data that you want to transfer. For example, If you want to transfer game data, you would select the "Games" menu.
Select the specific file that you want to transfer. Select "Move." Choose the storage device that you want to transfer the file to. If it's game data you're transferring, you will be required to sign in to your profile before the transfer is made.