To change the email used with a Microsoft account, add the new email as an alias, make it primary, and then update the security verification methods if codes are still going to the old address.
- Go to Manage how you sign in to Microsoft: https://account.live.com/names/manage
- Select Add email.
- Add the new email address and complete verification.
- Select Make primary for the new alias.
- Remove the old email only after the new one is added and working.
Important details:
- Aliases on a Microsoft account share the same password, contacts, storage, subscriptions, and settings.
- Verification codes sent by email can only be sent to the primary alias or another email added as a way to verify sign in.
If Microsoft is still sending codes to the old email, update the security info:
- Go to the Security tab: https://account.microsoft.com/security
- Select Manage how I sign in.
- Select Add a new way to sign in or verify.
- Add a new recovery email, Microsoft Authenticator, or another available verification method.
- Remove the old verification email if it still appears.
If access to the old verification method is already lost, use the sign-in helper tool:
If a security info change is already pending, changes that require a security code can be blocked until the protection period ends.
For Microsoft Teams Free, after changing the alias:
- On desktop, sign out and sign back in with the new email.
- On mobile, uninstall and reinstall the app, then sign in with the new email.