Can't login with Xbox One into backward compatible 360 games. Why?

The "Backwards Compatibility" only exists for games that they have told the XBox ONE to recognise as "Backwards Compatible".

Most of the games on the XBox 360 simply will not work on the XBox ONE.

Microsoft will claim the reason they can't make everything available at once is that they need a Publisher's permission to make the game Backwards Compatible.

But the real reason Backwards Compatibility exists is to lure XBox 360 owners who have been on the fence for a while into the false supposition that they will be able to play their 360 games on the ONE.

If you could do that... why not buy a ONE?

Because there is no backwards compatibility between the One and the 360. It really isn't hard to understand why we can't have 360 games.

Hi,

As some additional information. to the answer already specified.

The backward compatible game while it is the same game the download is basically different version of the game, being the backward compatible version of the game. This is also the reason why inserting a backward compatible game via disc will result in the
backward compatible version being downloaded (disk is still required to start the game)

So in order for you to download that backward compatible version you will have to login to the Xbox Live Account that is used on the 360, which allows you to download backward compatible games that you own.

The Xbox One is not backwards compatible with Xbox 360 games so you can't play any 360 games on the Xbox One

no you can't, when you login to the Xbox One go to my games and apps and you can install any backwards compatible games from there