Updating account

Updating the email used with Microsoft Authenticator requires changing the aliases on the underlying Microsoft account, then reusing Authenticator with the updated sign-in.

Follow these steps to update the email on the Microsoft account, then reconfigure Authenticator:

1. Change or add the new email alias on the Microsoft account
   1. Go to Manage how you sign in to Microsoft at https://account.live.com/names/manage and sign in with the current (old) email.
   2. Select Add email.
   3. Add the new email address and complete the verification process.
   4. After verification, select Make primary next to the new email if it should become the main sign-in alias.
   5. Optionally select Remove next to the old email if it should no longer be used (ensure at least one other alias exists before removing the primary alias).
2. Ensure security/verification info is up to date
   1. If verification codes are going to an old or defunct email, sign in to the security info page at https://account.live.com/proofs/Manage.
   2. Use an existing working method (alternate email or phone) to verify identity.
   3. Update or replace outdated security info. If none of the listed methods work, choose I don't have any of these when prompted and follow the steps to replace security information. Be aware that replacing all security info can put the account into a restricted state for 30 days.
3. Reconfigure Microsoft Authenticator
   1. On the mobile device, open Microsoft Authenticator.
   2. If the account still shows the old email alias, remove that account entry from Authenticator.
   3. Add a new Work or school or Personal (Microsoft) account, then sign in using the updated primary email alias and password.
   4. Complete any MFA prompts to finish setup.

If sign-in fails because verification codes are not received, use the security-info replacement path described above to regain access, then repeat the Authenticator setup.

References:

• Change the email address or phone number for your Microsoft account
• Troubleshoot Microsoft verification code issues
• What can I change on my Microsoft account?