If I make an alias for my MS acoount - can I use that alias to sign in to MS services?
How about can I transfer info (such as game details (from MS Store)) to another account (not alias)?
By 'alias' what do you mean ? If your name is Paul Smith and your email is psmith345@(ms/Hotmail/outlook).com, do you mean Paul or Smitty as a User name ? If so, you would still use the primary email acct to log on, no matter what your 'alias'/user name appears on log on screen unless you make a Local Acct.
The Store is tied to a MS acct on that computer. If you only have one MS acct, that will sync Onedrive or themes across all your devices. The games and apps you downloaded and installed on one computer will be available to install on another w/o add'l cost (will show that you Own) but not sure if, say, game high score, etc will transfer but easy enough to test.
If this doesn't answer, clarify what you propose to do.
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