To switch to another primary email address, simply select 'make primary' next to an existing alias, or select 'add email' to add it and then make it the primary email by selecting the option. Add a new email address or phone number to the account.If you remove an email, it is no longer available for authentication. Remove any email address or phone number linked to the account.Note that you may still use the previous primary email to sign in. Simply click on 'make primary' next to an email address to make it the new primary email address.
The page provides you with three core options: The primary email is highlighted with (primary alias) and listed at the top. The page that opens list all email addresses - the primary email and all aliases - for that account. You may be asked to sign in again as this is a high security page. Select 'Manage how you sign in to Microsoft' when the page loads.
