How to Fix Aadsts5000228 Access to Tenant Is Denied in Microsoft 365

When Office stops working as expected, start with the shortest official checks before you reinstall anything.

Problem Description: Aadsts5000228 Access Tenant Denied

AADSTS5000228 Access to Tenant Is Denied - Locked Out of New Admin Account is the issue affecting Microsoft 365. The problem affects Account Locked & Blocked and requires a focused, scenario-specific resolution.

Quick Answer for Resolving Account Locked

Account Locked & Blocked usually involves saved credentials, account identity, security information, or organization policy rather than the application alone. Confirm the correct account context before resetting authentication or escalating to an administrator.

Likely Causes Behind Account Locked & Blocked

• The Microsoft account or license context may not match the purchase or device.

• Cached credentials, outdated builds, or damaged local components can trigger account locked & blocked.

• A file-specific corruption or add-in conflict can mimic a broader application failure.

Recommended Solution: Fixing Account Locked Step by Step

When to use this: Apply these steps when the symptoms match and you can access the relevant Microsoft account or administrator.

1. check to see if there are other IT admins in your company who can help you with the reset MFA for your account and share with them the steps outlined in the article Manage user authentication methods for Microsoft Entra multifactor authentication.

2. Confirm the exact sign-in address and whether it is a Personal or Work/School Microsoft account.

3. Open a private browser window and test the account on the official Microsoft sign-in page.

4. Clear saved Microsoft credentials or browser cookies, restart the app, and sign in again.

5. If the account is organization-managed, ask an administrator to review sign-in logs, account status, and authentication methods.

Alternative Solutions for When Office Still Fails

1. Retry the Microsoft-side steps after restarting the app and device.

2. Test the same action in a private browser session or a new blank file to isolate account vs file issues.

3. Capture exact error text and screenshots before contacting Microsoft Support or your administrator.

Working with WPS Office: WPS Office for Local Document Work

WPS Office cannot replace Microsoft account, activation, or cloud fixes for this scenario. It remains one of the best free Microsoft Office-compatible alternatives for opening and editing local files.

1. Download and install WPS Office from the official website.

2. Open local Word, Excel, PowerPoint, or PDF files in the matching WPS app.

3. Save a working copy locally while Microsoft-side issues are resolved.

4. Return to Microsoft Office after the primary fix succeeds.

If you need a practical local workspace in the meantime, try WPS Office.

Prevention Tips for Safer Login Habits

• Keep one primary Microsoft account for subscriptions and Office sign-in.

• Install updates for Office and Windows before retrying failed workflows.

• Back up important files before repair, reset, or reinstall actions.

• Register more than one MFA method and keep recovery contacts current.

FAQs About Common Account Locked Answers

Can WPS Office fix this account locked & blocked issue directly? Only when the WPS steps match the formatting or file task. Account, activation, and cloud issues stay on the Microsoft side.

Should I reinstall Office before trying these steps? Not first. Confirm account, license, and the exact error before reinstalling.

What should I send to Microsoft Support? The affected account email, device type, Office version, exact error text, and screenshots with personal data hidden.