When your old email address doesn't suit you anymore but you want to save your contacts, online storage, subscriptions, and settings, then add an alias to your existing Microsoft account. An alias is another email address that works with the same account.
Sign in to Manage how you sign in to Microsoft.
Select Add email.
Follow the instructions to create a new Outlook.com email, or add any address that isn't already a Microsoft account.
Article ID: 4026162 - Last Review: Aug 11, 2017 - Revision: 1