Need Old Save From Hard Drive

Account sharing is actually against the rules.

If it has synced a newer save from the cloud it would of overwritten the save on your hard drive so you wouldn't be able to get the older save back unless it's in a separate save slot in the actual game itself.

Game saves can't be transferred between accounts.

Are you talking about save data for each game? If so you would need to use a transfer cable to transfer your files from the old hard drive. If you know longer have the old hard drive and didnt use the cloud you cant recover the saves

Hard drives are removable, so if you already have another xbox you can place the old hard drive in and see if it functions. You can redownload everything you have purchased/downloaded from your download history and license transfer to new xbox. You only
need the old hard drive to transfer saves.

The transfer cable is only needed for transferring data from one hard drive to another. So if you were transferring your game saves from your old xbox hard drive, then you would need a transfer cable or flash drive. Otherwise, you can just follow GreyPilgrim's
advice and you'll be all set.

So you will need your Console Serial Number from your old console to be able to do the DRM transfer on
www.xbox.com\drm and make sure to save all your info to a USB before selling the old console\Hard drive and delete your profile and saves on the old hard drive so the person who buys your console doesn't have access to
your account. I hope this helps.