Unable to get into Azure Tenant, I am the only admin with personal account

Follow these steps depending on the exact situation in the tenant.

1. If there is another global admin in the tenant
   • Ask that global admin to reset the multifactor authentication registration for the locked-out account.
   • The other admin should:
     1. Sign in to the Azure portal and open Microsoft Entra ID.
     2. Go to Users and select the affected user account.
     3. Open Authentication methods.
     4. Select Require re-register multifactor authentication.
   • After this, sign in again; the portal will prompt to set up MFA (for example, Microsoft Authenticator) from scratch.
2. If there is no other global admin (only one admin on the tenant)
   • Use the official escalation path for locked-out global admins:
     • If this is a Partner/organization tenant, follow the guidance under Solve account access problems:
       • If the account is the only global admin, contact the Azure Data Protection team at the phone number listed in the documentation.
       • If the company has no global admin, contact the Microsoft 365 Data Protection team via the regional support number listed under Get support - Microsoft 365 admin and request help to reset the password or restore access.
   • These teams can verify ownership of the tenant and help reset access when self-service and in-tenant admin recovery are not possible.
3. If the issue is that the account itself cannot sign in anywhere (password/MFA problems)
   • If self-service password reset (SSPR) is enabled, use the security info method to reset the work or school password: see "Reset your password using security information" in the documentation.
   • If SSPR is not enabled or does not work, use the Data Protection escalation paths described above.
4. Prevent future lockouts once access is restored
   • Configure more than one MFA method (for example, Microsoft Authenticator plus phone or another method) so a single device loss does not block access.
   • Create an emergency access (break-glass) account in Microsoft Entra ID with appropriate protections so that administrative access is still possible if normal accounts lose MFA access.

References:

• Troubleshoot sign-in issues and account access problems
• Reset your password using security information
• Global Admin Locked out - Microsoft Q&A