MFA & Verification Issues

Fix OneDrive for Business Sign-In Loops When MFA Is Disabled

Kushani Nimanthika Oct 7, 2026 870 views

Question details

The user experiences continuous sign-in loops and Authenticator prompts in OneDrive for Business despite Multi-Factor Authentication (MFA) being disabled.

Fix OneDrive for Business Sign-In Loops When MFA Is Disabled

Product: OneDrive for Business
Device & OS: not provided
Scenario: Attempting to sign in to OneDrive for Business after MFA has been deactivated.
Observed behavior: The application repeatedly prompts for a Microsoft Authenticator code, creating a sign-in loop that prevents the user from accessing their files.

Before you start

Ensure you have administrator access to the Microsoft 365 Admin Center, or contact your organization's IT administrator to perform the necessary account resets.

Solution 1Recommended

Reset Authentication Methods in Microsoft 365 Admin Center

Clear cached authentication methods and force a reset so the system recognizes that MFA is disabled.

Conflicting information from an old personal Microsoft account or cached Microsoft Entra ID registrations can cause sign-in loops. Re-registering or resetting the authentication method forces the system to sync the disabled MFA status.

Sign in as Administrator

Go to the Microsoft 365 admin center and log in using global or authentication administrator credentials.

Locate the User

Navigate to 'Users' > 'Active users' in the left-hand menu and select the affected user.

Manage Multifactor Authentication

Click on 'Manage multifactor authentication' or access the user's authentication methods via the Microsoft Entra admin center.

Require Re-registration

Select the option to 'Require re-register MFA' and revoke their existing multifactor authentication sessions.

Restart OneDrive

Have the user completely close OneDrive for Business, relaunch it, and attempt to sign in again.

Reset Authentication Methods in Microsoft 365 Admin Center

Synchronization Delay: Changes made in the Admin Center may take a few minutes to fully propagate across Microsoft's servers. Wait briefly before attempting the new sign-in.

Solution 2

Review Microsoft Entra ID Security Defaults

Check if organizational security defaults are enforcing MFA and overriding individual user settings.

Solution 3

Contact Microsoft Support

Reach out to backend support if resetting authentication methods does not resolve the loop.

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Frequently Asked Questions

Why is OneDrive still asking for an Authenticator code if MFA is turned off?

This typically occurs due to cached credentials on the device, a conflicting personal Microsoft account linked to the same email, or legacy Microsoft Entra ID registrations that haven't updated to reflect the new MFA status.

Should I disable security defaults to fix this sign-in loop?

No, disabling security defaults is not recommended because it removes baseline protection for your entire organization, leaving you vulnerable to identity attacks. It is much safer to reset the specific user's authentication methods.

How long does it take for MFA changes to take effect in OneDrive?

While changes made in the Microsoft 365 admin center are often immediate, it can occasionally take anywhere from a few minutes to up to 24 hours for synchronization to fully propagate across all backend Microsoft services.

Can a standard user fix this OneDrive sign-in loop on their own?

Usually, no. Because the issue often stems from Microsoft Entra ID conflicts and cached multifactor authentication methods, resolving it requires administrative privileges to reset the account's authentication settings.

Login & Account Issues