his tenant has been blocked due to inactivity. To learn more about tenant lifecycle policies,

The error means the Microsoft Entra/Azure tenant linked to the Hotmail account has been marked inactive and blocked (error AADSTS5000225). This is a tenant lifecycle issue, not a problem with the Windows device itself.

Key points from the tenant inactivity policy:

1. When a tenant is inactive for a period, Microsoft blocks sign-in to that tenant with error AADSTS5000225.
2. From the moment the tenant becomes inaccessible, there is a 20‑day window during which a tenant administrator can request reactivation.
3. If the tenant remains in this blocked state for more than 20 days, the tenant is deleted and cannot be recovered.

From the description (“작년 9월에 무얼 갱신하라고 했는데 못한 것 같습니다”), it is likely that the tenant has been inactive longer than 20 days. In that case, the tenant itself (and its Azure resources) cannot be restored.

What can be done now depends on timing:

1. If the tenant has been blocked for less than 20 days
   • A tenant administrator must contact Microsoft support and request reactivation:
     • Use the global support phone numbers listed in the documentation.
   • While the support case is open, do not submit duplicate requests.
2. If the tenant has been blocked for more than 20 days
   • The tenant is deleted and not recoverable.
   • A new tenant must be created if Azure/Entra services are still needed. For example:
     • Sign in to https://entra.microsoft.com with the Microsoft account that still works.
     • Go to Entra ID → Overview → Manage tenants and create a new tenant.
     • Then access it via a URL such as https://portal.azure.com/<newTenantName>.onmicrosoft.com.
3. About the Hotmail account itself
   • The error AADSTS5000225 is about the tenant, not necessarily that the Hotmail account is permanently banned.
   • The Microsoft account activity policy states that a Microsoft account is considered inactive only if there is no sign‑in for two years, and even then there are several exceptions (purchases, subscriptions, certifications, Microsoft Store publishing, account balance, etc.).
   • To check whether the Hotmail account is still active as a Microsoft account (separate from Azure/tenant access), sign in to general Microsoft services (for example Outlook.com, OneDrive, or the Microsoft account management site). If sign‑in works there, the account itself is not permanently blocked, only the old tenant is gone.
4. If OneDrive or personal services show “account blocked”
   • For OneDrive personal accounts that show “Your account is currently unavailable”, the documented recovery path is:
     • Go to the Microsoft services account reset page (linked in the documentation) and follow the on‑screen steps to reactivate.
5. If information is needed but the tenant is already deleted
   • If the tenant is past the 20‑day window and deleted, Microsoft cannot restore it, but support may still be able to confirm the status and explain what happened.
   • Use the global support phone numbers and provide the sign‑in email and any tenant details so they can look up the status.

If the Hotmail‑based tenant is indeed permanently deleted, future Azure or Entra work can be done by creating a new tenant and, if preferred, using the Gmail‑based Microsoft account for that new tenant.

References:

• Tenant inaccessible due to inactivity
• Microsoft account activity policy
• Reactivate an account that has been blocked
• Restrict access to a tenant
• Error message: interaction_required: AADSTS5000225: This tenant has been blocked due to inactivity - Microsoft Q&A
• 7 Day Old Azure Account: AADSTS5000225: This tenant has been blocked due to inactivity. - Microsoft Q&A
• Error message: AADSTS5000225: This tenant has been blocked due to inactivity. - Microsoft Q&A
• Personal Microsoft account cannot be closed due to organization link (Error AADSTS5000225) - Microsoft Q&A
• Severity A Situation - Locked out of global admin account (MFA) - business down - Microsoft Q&A