How to preinstall games in Xbox App on PC

I figured out. You have to install it via the Microsoft store. Very clunky

I'm Samy an independent advisor. Welcome to the Xbox community. How are you?

Check for updates on Windows Update, update everything including optional/additional updates.
1. Logout from Xbox app and Microsoft Store app
2. Look for the Xbox app and Microsoft Store app in the Windows menu, right-click, click app settings and then click terminate, restore and reset.
3. Clear the store cache type ''wsreset'' in the Windows bar, run as admin, and wait for the screen to close and open the store automatically.
4. Open the Microsoft Store app, click on the 3 dots in the upper right corner>downloads updates>get updates and update everything.
5. Restart your PC, log in to both apps and see if that solves the problem

You can use the Game Streaming feature in the Xbox App (preinstalled in Windows 10) to stream the Xbox One display to your PC.

See here for more details: http://support.xbox.com/en-US/games/game-setup/how-to-use-game-streaming

I am trying to preinstall the game through my xbox pc game pass but keep getting the following error code (0x80070005).

thank you .So i don't need any client for microsoft store?If i buy form microsoft store can i play directly play the game to my pc?Should choose ''pc version''?Also i see a preinstall app ''xbox console companion'' do
i need it?And the game pass is an alternative to steam?