Your Hotmail.com or Live.com email address works on Outlook.com—there's no need to change your address or get a new one. However, if you want to use an @outlook.com address, you have several options. The best option is to Add an alias to your account.
An alias is an additional email address that uses the same inbox, contact list, and account settings as the primary alias. You can sign in to your account with any alias—they all use the same password. You can send email from an alias whether you’re using Outlook.com, a mail app like Outlook or devices such as a phone.
You can also rename your primary alias, but since aliases can be used to sign in, send and receive mail, and do pretty much anything else you can do with a primary alias, we don't recommend renaming.
Warning
If you use a Windows Phone, you'll need to reset it to factory settings, which will cause you to lose all your personal data and installed apps.
If you rename an MSN account, you can't undo the rename.
To undo a rename, you must be in the country in which you created the account.
If for some reason you need to rename your primary alias, here's how:
In Outlook.com, click your user name in the upper-right corner.
Click Account settings. You might have to sign in again.
Click Overview, and then click Account aliases.
Click Rename.
Click Yes, rename my primary alias.
Enter a new email address, and then click Add alias. If the address you request is already taken, you’ll be prompted to enter a different address.
- Or -
Select Add an existing email address as a Microsoft account alias, enter an existing email address, and then click Add alias.
Notes
If you rename your primary alias, you can go back to the original name within 30 days for most accounts. However, in rare instances, you won't be able to undo a rename.
You won't be able to rename a primary alias if your account has been blocked more than once because someone else was using your account.
You can rename your primary alias twice every 180 days. If you rename and then undo the rename, the undo doesn't count towards your limit.
