If you've lost access to your Microsoft Authenticator codes, here are some steps you can take to recover:
- Restore from Backup – If you had previously backed up your Authenticator app, you can restore it by selecting "Restore from backup" in the app.
- Use Alternative Recovery Methods – Try signing in using an alternative method, such as an email or phone number linked to your Microsoft account.
- Reset Two-Step Verification – If you can't restore your Authenticator, you may need to reset two-step verification by signing into your Microsoft account and updating your security settings.
- Contact Microsoft Support – If none of the above options work, Microsoft support may be able to help you regain access.
If you had no backup, recovery might be difficult, but checking your account security settings for alternative verification methods is your best bet.
For reference :
#https://support.microsoft.com/en-us/account-billing/restore-account-credentials-from-microsoft-authenticator-ce53096e-1e1c-4840-9e32-1618bc33cd43
#https://answers.microsoft.com/en-us/msoffice/forum/all/question-about-account-recovery-microsoft/853146b7-442f-4306-a12d-ff9b2819034e
#https://learn.microsoft.com/en-us/answers/questions/1166232/how-to-recover-microsoft-authenticator