How to delete twh registration on Multi -Factor Authenticator

Question

How to delete twh registration on Multi -Factor Authenticator

Moral, Nelvan C 0

Request to reset so that i can register again due to lost of phone

VEMULA SRISAI 13,900 Reputation points Microsoft External Staff Moderator

2026-05-04T10:33:31.8733333+00:00
Hello Moral, Nelvan C,

If you’ve lost your phone and can’t complete Multi‑Factor Authentication, the MFA (Authenticator) registration needs to be reset so you can register again.

What to do:

Ask a Global Administrator or Authentication Administrator in your organization to reset your MFA methods.

They can do this from Microsoft Entra admin center → Users → select your account → Authentication methods → Require re‑register MFA / Delete existing methods.

After the reset, sign in again and register the Microsoft Authenticator app on your new phone.

If you don’t have access to an admin, please let us know.
VEMULA SRISAI 13,900 Reputation points Microsoft External Staff Moderator

2026-05-06T14:43:31.6833333+00:00

Moral, Nelvan C I’m following up on my previous response to see if it helped. Please feel free to reach out if you need any further assistance—I’m happy to help.

1 answer

Your answer

VEMULA SRISAI 13,900 Reputation points Microsoft External Staff Moderator

2026-05-04T10:33:31.8733333+00:00

Hello Moral, Nelvan C,

If you’ve lost your phone and can’t complete Multi‑Factor Authentication, the MFA (Authenticator) registration needs to be reset so you can register again.

What to do:

Ask a Global Administrator or Authentication Administrator in your organization to reset your MFA methods.

They can do this from Microsoft Entra admin center → Users → select your account → Authentication methods → Require re‑register MFA / Delete existing methods.

After the reset, sign in again and register the Microsoft Authenticator app on your new phone.

If you don’t have access to an admin, please let us know.
VEMULA SRISAI 13,900 Reputation points Microsoft External Staff Moderator

2026-05-06T14:43:31.6833333+00:00

Moral, Nelvan C I’m following up on my previous response to see if it helped. Please feel free to reach out if you need any further assistance—I’m happy to help.

Answer 1

Because the phone is lost, the existing Multi-Factor Authentication (MFA) registration must be reset by an administrator so a new device can be enrolled.

Contact the Microsoft Entra (Azure AD) or Microsoft 365 administrator for the account.
The admin signs in to the Azure portal and opens Microsoft Entra ID.
Go to Users > select the affected user.
Open Authentication methods.
Select Require re-register multifactor authentication.
Save the change.

After this, the next sign-in will prompt to set up MFA again (for example, adding Microsoft Authenticator on a new phone or adding a phone number as another method).

If the account is an admin account and there is another global admin in the tenant, that other admin must perform the same “Require re-register multifactor authentication” step.

If the phone was lost or stolen, also inform the organization’s Help desk so they can clear MFA settings and update the account as needed. After settings are cleared, sign-in will again prompt to register MFA on the new device.

References: