transferring or migrate current game from one computer to another

Games cannot be transferred from one account to another. However, if both accounts are signed in on the computer, you can still play the game on another account.

and one more question, if I logged into my account on another computer and downloaded the game to an external drive and then transferred the game to my computer from the external drive, it wouldn't work either?

correct, that is the connection between your computer and router, so if you have another computer on your network and you want to transfer a large video from one computer to the other, it will transfer much closer to 54mbps because it is going from one computer
through the router to another computer, but going to the internet, it is going to your router at 54mbps and then hitting your modem where it's being capped at 10mbps, then out to the internet.

Hey Muratneseli,

Thank you for reaching out! You should be able to transfer your PC games from one computer to another via an external hard drive.

So there currently is no way to transfer all the Profiles and Captures from one Xbox to Another?