If like me and you got a new xbox you will have stuff on a old harddrive this tut is simple way to get it to your new xbox this i have only tested this on a slim xbox so mabye not the classic version i don't know.
Step one
You will need a Hard Drive Transfer Kit it about $29.99.
Next plug the Transfer Kit into your New xbox then turn on the power and then connect the harddrive to it sign in after a bit of movining a bout on the dashboard a message dont click the top one click the middle one and there you go all your stuff will be moved to the new harddrive Voila!