Hi @Lucas Sa,
Thanks for reaching out and explaining the trouble you're having logging into your college account. I completely understand how frustrating it is to be stuck in a loop, especially when you need to submit important assignments. I'm here to help you understand what's happening and guide you to the best solution.
Based on your description, it sounds like your college account is now requiring Multi-Factor Authentication (MFA), an added security layer. The challenge you're facing is that it's asking for a code from an "authenticator app" you don't recall setting up, and the login screen isn't offering any other verification options like email or phone. This indicates your account's MFA is currently configured to only accept verification from an Authenticator app, and no backup methods are available.
Since your college email is a work or school account, its security settings, including MFA, are managed by your institution's IT department. As general Microsoft Support, we don't have the administrative access to directly change these settings.
To quickly resolve this and regain access to your college platform, the most effective step is to contact your college's IT Support or Help Desk directly. Only they have the ability to adjust your MFA settings, reset them, or help you set up a new verification method.
When you contact them, providing these details will be very helpful:
- Your full name and college email address.
- The exact error message you're seeing: "enter the code displayed in the authenticator app on your mobile device."
- Explain that you're locked out because you don't have an authenticator app set up for this account, and no alternative options are shown on the login screen.
- Mention you've tried logging in from multiple devices (computers, phones) with the same result, confirming it's an account-level issue.
Once your college IT team helps you regain access, you can manage your security verification methods (like adding a phone number or setting up the Authenticator app again) by visiting your security info page. This allows you to control which methods you use for MFA in the future.
- You can access your security info here: Manage authentication methods for Microsoft Entra multifactor authentication
Your college's IT team is fully equipped to resolve this specific access problem for institutional accounts. Please prioritize contacting them; we understand the urgency and hope they can get you back on track promptly.
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