A Microsoft app for iOS and Android devices that enables authentication with two-factor verification, phone sign-in, and code generation
Hey there, Rodolfo Jesús Vieto Morales
If this is a personal Microsoft account, and you have lost access to the Microsoft Authenticator app, you can try recovering your account when signing in here: https://account.live.com/proofs/manage/additional
When you are trying to access your account, please click onto the option "I don't have access to the Authenticator app" where you should be able to choose other options to prove you are the account owner.
Once you have signed into the site, you will see an option to remove two step verification on the top of the page.
Hope this helps,
Nathan