How to swap your primary account with a new alias on Windows Phone 8.1

[Windows Central]

We?ve had Windows Phone 8.1 for a handful of weeks, but we?re still learning new things all the time. Remember back on Windows Phone 8.0 and below how much of a pain it was to change your primary Microsoft account email? Adding an alias to your account and making it your primary required a hard reset of the phone to add it. That changes in Windows Phone 8.1. Today you can add an alias to your account and make it your primary without needing to change anything! Here?s how.

Full story from the WPCentral blog...