Why can’t I move my non x/s game on to my added on hard drive?

I am not aware what the issue could be. I advise that you contact Microsoft support for further assistance: support.microsoft.com

Hi. My name is Brilliant and I am happy to assist you today.

Are you able to move the X|S games to your external hard drive or is it just the non X|S games you're having issues with?

You can check which drives work on Xbox X|S and see if yours is compatible. You can find more details here: https://www.lifewire.com/use-extern...#toc-what-drives-work-with-xbox-series-x-or-s

I hope this helps resolve your issue.

To transfer games from the internal hard drive to an external hard drive on an Xbox Series S or X, navigate to "My games & apps", select the game you want to transfer, choose "Move or Copy", then select the external drive as the destination and confirm.

Thank you, One more thing, Can I move a game from my attached hard drive to my console? I have fortnite installed on my attached hard drive so when I plug it in the xbox series x will I be able to move the game to my console internal hard drive and have the next gen benefit?

I believe, if games are optimised for Series X/S, you will need to download and install as the version on your external drive would be the XBox One version. You could still play that version but it wouldn't have the next gen benefits.

Hi Jack. My name is Kyle and I'm an independent advisor.

You need an expansion card for most Series X/S titles, as external hard drives are not fast enough to run these games. You can store these games on the hard drive but to play them you'll need to move them to internal storage or an expansion card.

Games from Xbox One or earlier and select Series X/S titles can be stored and played on an external hard drive.