When someone else on an account that isn't mine plays an xbox game where I'm signed in, it...

All I have is an Xbox 360 and the site keeps signing me out when I go to look at a profile (mine or someone else's) and when I go to the My Account section.

Waste of time ticking the Keep Me Signed In box to be honest.

Did anyone ever figure out a solution. Mine is still showing someone else's xbox that isn't mine anymore.

Nope. Changed my password, nothing changed - but there isn't even an xbox on my account. The game isn't showing up on my end, just what other people can see that I'm playing.

I went through the account sign ins, devices and games and there's no one logged in other than me, there's no xbox and 2k isn't listed as a game I've played ever.

So...

This isn't actually someone playing on my account unless they masked everything, it's literally the app showing that I'm playing games I don't own.

Hi

On the PC it works differently that on the Xbox. There isn't the same sharing feature for any account.

Worth trying though, you should be able to sign in on to the Windows 10 Store as your account (Main account that owns the game) to then allow it to be downloaded. This might let someone else play it on their account, but it might only work if the account
signed in to the PC is yours.

I'm hoping it's not that different to usual.

I think It would be as though the game is physically in the xbox, when it actually isn't. I mean you can't play a game, and have someone else playing the same from the same disc, at the same time. The registering is probably just to stop people doing that.
Installing many copies of the game, or installing it, then letting someone else play from the disc.

There will probably be some simple way to un-register it from the account. It will all e covered at E3