Instructions
Select the "My Xbox" menu from your Xbox 360 and choose "System Settings" at the far right in the menu.
Choose "Memory" and select the storage device (hard drive, memory unit or flash drive) that contains your "Fallout 3" saves.
Select "Games" from the following menu and select "Fallout 3."
Choose "Copy," "Move" or "Delete" from the "Fallout 3" menu and select the location to copy or move it to (only if you selected "Copy" or "Move"). If you selected "Delete," press "Yes" to confirm the operation.