Can I use my INTERNAL Xbox 360 hard drive on a Xbox one

You can buy either this HDD
http://www.gamestop.com/xbox-360/accessories/xbox-360-250gb-internal-hard-drive/83934

or this HDD
http://www.gamestop.com/xbox-360/accessories/xbox-360-250gb-internal-hard-drive/83934

And you'll be good to go. Just make sure they are the official Microsoft HDD drive.

Hi,

You only really need an official Xbox 360 Slim hard drive if:

• The game insists on using an internal 360 hard drive. There are a select few 360 games that need to install some data from the disc to run, these games need an internal drive.
  
• You still want to play original Xbox games.
  

For almost all other Xbox 360 games you can install to a external hard drive via a USB cable. The Xbox 360 supports external drives up to 2TB. If you connect an standard external hard drive via USB you can just move the game or saves to the external drive.

Unless your Xbox 360 drive is official, you won't be able to play original Xbox games. Most drives are not official. Any official hard drive will be quite old now as Microsoft hasn't made these drives for nearly a decade.

I have an old Xbox 360 I use occasionally for games that are either not BC on the Xbox One/Series X or were never released on PC. I use a 1TB external hard drive. I also want to insure that my Xbox 360s old DVD drive will continue to work into the future, so I install my 360 disc games to the 1TB drive.

The Xbox 360 uses external hard drives differently to the Xbox One.

It doesn't see them as combined storage.

So yes you will need the 360 internal drive... which you can get separately and install yourself.

No. The cloud is the only way to transfer saves to the One.

Right. I have it on my Xbox 360 hard drive( internal drive). What is an "Official" drive? Is the Xbox 360 I bought not made with an official drive? Makes no since.

Now it did install it on the flashdrive i had at first. Should I remove everything, and try again just using the Xbox 360 hard drive? Would that work?