I am getting a second computer. Will I be able to install on both?
If you buy on Steam then yes. I dont know about Microsoft Store.
I bought it at the Microsoft Store.
Yes, you should be able to install, unless they have put a limit. By default, apps form the MS store can be installed on up to 10 devices.
I would have thought you can install anywhere aslong as your signed in with the microsoft account you bought it with.
I am wondering if you can sign in with different MS accounts to set up two profiles for my family, I bought it on steam and I know only one could be used at anytime but it would be cool to have a separate log book and such?