A Microsoft app for iOS and Android devices that enables authentication with two-factor verification, phone sign-in, and code generation
If the Authenticator prompt is not appearing on the new computer or tablet, try these checks first:
- Unlock the Authenticator app on the mobile device that should receive the prompt. If the app is locked, the approval box might not appear.
- Check notifications for Microsoft Authenticator. If notifications are silent or disabled, the prompt may not show. Also check for a texted authentication code that may have arrived silently.
- Update Authenticator to the latest version. Older versions can cause sign-in failures.
- Check connectivity on the phone or tablet that has Authenticator. If needed, switch between Wi‑Fi and mobile data.
- Verify date and time on the device are correct.
If this is a personal Microsoft account and reinstalling did not help, remove the old Authenticator registration and add it again:
- Sign in to
https://account.microsoft.com. - Go to Security info.
- Remove the Authenticator App sign-in method.
- Add Authenticator App again and complete setup.
If this is a work or school account:
- Notifications can be controlled by the organization.
- If the old device is still registered or the app was reinstalled and is now stuck in a loop, go to the two-step verification area of My Apps or the organization’s company portal and turn off verification for the old device.
- If access to the old device is gone or sign-in methods cannot be changed, the school or IT admin must require MFA re-registration or reset the authentication method.
If the message shown is “Authentication did not complete”, the supported causes are: app locked, silent notifications, outdated app, network issues, incorrect date/time, or needing a password reset.
- Troubleshoot problems with Microsoft Authenticator
- Microsoft Authenticator FAQs
- Download Microsoft Authenticator
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