Could You Extend The PixArk Game To The Windows 10 Xbox App?

You can check the game for windows here: https://www.microsoft.com/en-us/p/p...=1&wa=wsignin1.0&activetab=pivot:overviewtab.

For specifications on the tech requirements for the game check the devs official page.

Microsoft are stopping extended support for Windows 7, by 14th January 2020.

As stated the Xbox App and all games associated with it are all based on and designed for use on the Windows 10 system. With Game Pass Ultimate, that extends further to your PC being able to run Windows 10 1903 build, which there are a fair few that can
not, as their system acrhitecture/chipsets/graphics cards can not handle it.

The best advice would be to check your system and see if it meets requirements for Windows 10 1903 and download the operating system, or getting a more up to date PC.

You can't change a gamertag into a previously owned one but you could sign in to the Windows 10 Xbox app with the old one though.

This link will give you you all the info you need to sign in to the Xbox app on Windows 10.

support.xbox.com/.../signin-xbox-app-on-windows-10

Not without the use of third party hardware/software. I'm not sure if you have an XB1 if you could play the 360 through the HDMI pass-through and stream that - might be worth a try? But it'd be really laggy.

It's a requested feature though:

xbox.uservoice.com/.../7180675-stream-xbox-360-games-to-windows-10-xbox-app

Xbox Console Companion is not required for games on Windows 10. There is currently a new app for games, the Xbox app (beta). Check out the Microsoft Store.

Also could you describe what problems you are having with the app?