Why Microsoft 365 Keeps Microsoft Authentication App and How to Fix It

This guide walks you through mfa & verification issues using Microsoft-supported steps first, with WPS only where it genuinely helps.

Problem Description: Lost Microsoft Authentication App

I urgently need help regaining access to three Microsoft 365 Business accounts after losing access to my multi-factor authentication following a device change. **Situation:** - I am the Global Administrator for these accounts - Lost access to Microsoft Authenticator after changing devices - No other administrators can grant me access - Business domain: *[Moderator note: Personal information removed]* **Support Attempts:** I have tried calling the UK support number twice today, with each call exceeding 20 minutes on hold without reaching an agent. **Request:** Please advise on how to: 1. Create a support ticket for MFA reset/account recovery 1. Reach the Data Protection Team who can authorize MFA resets for locked-out Global Administrators 1. Get alternative contact methods if phone support is unavailable I am prepared to verify my identity and account ownership through any required documentation (tenant ID, domain ownership, billing records, etc.). This is blocking access to critical business systems and I would greatly appreciate urgent guidance on the proper escalation path. Thank you for your assistance. --- *Moved from: Microsoft Security | Microsoft Authenticator*

Quick Answer for Office Setup on New Device

If you've lost the Microsoft Authenticator app and can't sign in to your admin account, find the customer service phone number for your region at https://support.microsoft.com/topic/customer-service-phone-numbers-c0389ade-5640-e588-8b0e-28de8afeb3f2.

Likely Causes Behind MFA Root Factors

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

• Cached credentials, outdated builds, or damaged local components can trigger mfa & verification issues.

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

Recommended Solution: Repairing Office Startup Issues

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

1. Call the frontline and ask them to raise a ticket.

2. If you can't reach your local support number, try calling during business hours or contact another region offering support in your preferred language.

3. Follow the instructions to request Microsoft Data Protection team support.

Alternative Solutions for Secondary Login Fixes

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 as a Local Alternative

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 Keeping Office Stable Long Term

• 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 Office Support Questions

Can WPS Office fix this mfa & verification issues 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.