MFA & Verification Issues

How to Recover Microsoft Authenticator Without a Backup

WPS Editor Sep 28, 2026 869 views

Question details

The user needs to regain access to their Microsoft accounts on a new phone after losing the old device without having cloud backup enabled in the Microsoft Authenticator app.

How to Recover Microsoft Authenticator After Losing a Phone Without Backup

Product: Microsoft Authenticator
Device & OS: not provided
Scenario: Setting up a new phone and attempting to sign into work or organizational accounts when the old device was lost or reset without a cloud backup.
Observed behavior: The user is locked out of their accounts because the system prompts for an Authenticator code from the lost device, and no backup is available to restore the credentials.

Before you start

Before proceeding, identify the best way to contact your organization's IT administrator or helpdesk, as you will need their administrative privileges to clear your old authentication settings.

Solution 1Recommended

Request an MFA Reset from Your IT Administrator

Since there is no cloud backup to restore, standard users must have their multi-factor authentication (MFA) methods reset by their organization's IT department.

Without a cloud backup, Microsoft Authenticator cannot automatically transfer your existing account credentials to a new phone. For security reasons, the connection to the old device must be manually severed by an administrator.

Contact your IT department

Reach out to your organization's Microsoft 365 administrator or IT support desk via email, phone, or an alternative communication channel.

Request an MFA reset

Ask the administrator to 'Require re-register MFA' or revoke your existing MFA sessions in the Microsoft Entra ID (formerly Azure AD) admin center.

Sign in on the new device

Once the administrator confirms the reset, open a web browser on your computer and attempt to sign into your Microsoft 365 work account.

Register the new phone

During sign-in, you will be prompted to set up the Authenticator app again. Scan the provided QR code with the Microsoft Authenticator app on your new phone to link the device.

Request an MFA Reset from Your IT Administrator

Account Security Maintained: This reset process ensures that whoever might have your old phone can no longer approve login requests for your work account.

Solution 2

Contact Microsoft 365 Business Support (For Sole Administrators)

If you are the only global administrator for your organization and lost your authenticator, you must contact Microsoft Support directly to regain access.

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Frequently Asked Questions

Is there any way to bypass Microsoft Authenticator if I don't have a backup?

No, for security reasons, there is no backdoor or bypass. If you did not enable cloud backup and do not have an alternative sign-in method (like SMS or a hardware token) previously set up, your IT administrator must reset your MFA.

How do I turn on cloud backup in Microsoft Authenticator for the future?

Open the Microsoft Authenticator app, go to Settings, and toggle on 'Cloud backup' (on iOS) or 'Cloud Backup' (on Android). You will need to sign in with a personal Microsoft account to serve as the recovery account.

Will resetting my MFA delete my emails or OneDrive files?

No. Resetting your multi-factor authentication methods only clears the security verification requirements for logging in. Your actual account data, emails, and files remain completely safe and untouched.

Can I use the same phone number for my new Authenticator setup?

Yes, as long as you have transferred your SIM card to the new phone and can receive SMS messages or calls, you can use the same phone number as a backup verification method once your IT admin resets your account.

Login & Account Issues