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Microsoft Authenticator
A Microsoft app for iOS and Android devices that enables authentication with two-factor verification, phone sign-in, and code generation.
7,682 questions
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You can restore from a backup. If you're recovering your personal Microsoft account, you must make sure you don't have a personal Microsoft account already set up in the authenticator app.
https://learn.microsoft.com/en-us/azure/active-directory/user-help/user-help-auth-app-backup-recovery
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