my microsoft authenticator app delated itself and now i can't log in

If your Microsoft Authenticator app has deleted itself and you're unable to log in, you may need to reset your multi-factor authentication (MFA) settings. Here are some steps you can take:

1. Reinstall the Microsoft Authenticator app: Download and install the Microsoft Authenticator app again from your device's app store.
2. Recover your account: If you had backup options set up, you can restore your account in the app. If you did not set up backups, you will need to follow your organization's procedures for resetting MFA.
3. Contact your administrator: If you are part of an organization, reach out to your IT administrator for assistance. They can help reset your MFA settings so you can re-register your authenticator app.
4. Use alternative sign-in methods: If available, you may be able to use other sign-in methods such as SMS or phone call verification until you can set up the authenticator app again.

If you are unable to resolve the issue, consider contacting Microsoft support for further assistance.

References:

• Frequently asked questions about Microsoft Entra multifactor authentication
• Can't set up MFA because five devices are already registered to use an authenticator app