How to search for already installed game?

Hello. the simplest option is from the windows store app. search for the game in the windows store search engine and it already appears available to install on your pc

It is not listed there in Games and Apps, not even seen as Ready to install. As I have already mentioned in the actual post, When I go on to the store and search for the game I brought. It shows as already installed. But I cant see that on my machine.

I had to search for Mass Effect in the XBox One store. When you search you should see the actual game and the Pinnacle Station DLC and you should be able to install Pinnacle Station from there. The Bring Down the Sky DLC is for some reason bundled into
the actual ME1 game (if you go to the game's page it should show it there), so assuming you installed the game already the BDTS DLC should already be installed.

"Fun" Fact: after playing for over 13 hours I am now getting an error saying I am missing the BDTS DLC, and I have no idea how since it says it is "Bundle Only" with the actual game that I already have installed. I have found no solution for this yet so
I added a new post on here to try to get some help.

Have you tried searching for the game manually? If you already own the game on the 360 library, you should be able to claim it on your xbox one. It should show you the Install option once you search for the game.

It should already be available now. Just search for the game in the store. It'll give you the option to install since you have game pass.