Things You'll Need
Instructions
Turn off your Xbox 360.
Connect the USB external hard drive to an available USB port.
Turn on your Xbox 360. Freestyle Dashboard detects the USB drive and asks you if you would like to store the data to Freestyle Dashboard. Select "Yes." The Freestyle Dashboard indexer opens.
Select the directory containing the box art then click "Import." Freestyle Dashboard extracts the box art and caches it on your Xbox 360.