MFA & Verification Issues

How to Reset Microsoft Authentication After Losing Your Device

Huma Ashraf Ch Sep 27, 2026 869 views

Question details

The user needs to regain access to their Microsoft account and reset their multi-factor authentication (MFA) settings because the device receiving the verification codes was lost.

How to Reset Microsoft Authentication After Losing Your Device

Product: Microsoft Account / Microsoft 365
Device & OS: not provided
Scenario: The user is attempting to sign into a Microsoft service but cannot complete the 2-step verification process because their authenticator device or registered phone is missing.
Observed behavior: The sign-in process is blocked at the authentication prompt, sending verification codes to an inaccessible lost device.

Before you start

Before attempting to recover your account, verify if you have access to any backup email addresses, alternate phone numbers, or physical security keys previously linked to your Microsoft account. Ensure you are attempting the login from a trusted network if possible.

Solution 1Recommended

Use an Alternate Verification Method (Personal Accounts)

Bypass the authenticator app by selecting a registered backup verification method during the sign-in process.

If you previously set up a backup phone number, secondary email address, or security key, you can use one of these to verify your identity and bypass the lost device.

Enter Your Credentials

Go to the Microsoft sign-in page and enter your standard email address and password.

Select Sign in Another Way

When prompted to approve the sign-in on your Authenticator app, click on the link that says 'I cannot use my app right now' or 'Sign in another way'.

Choose a Backup Method

Select an available backup option from the list, such as receiving an SMS code on a secondary phone number or an email to your recovery address.

Verify and Update Security Info

Enter the code you received. Once logged in, immediately go to your Microsoft account Security settings and remove the lost device from your verified authentication methods.

Use an Alternate Verification Method (Personal Accounts)

Security Warning: Never share your verification codes publicly or with anyone claiming to be from support. Microsoft will never ask for your password or verification codes directly.

Solution 2

Contact Your IT Administrator (Work or School Accounts)

Request an MFA reset or a Temporary Access Pass from your organization's Microsoft 365 administrator.

Free Microsoft Office alternative

Keep Working While You Recover Your Account with WPS Office

Locked out of Microsoft 365 due to a lost verification device? Don't let account recovery halt your productivity. WPS Office is a free, powerful alternative that lets you open, edit, and create Office documents locally without requiring complex cloud sign-ins.

1. Download the Installer: Visit the official WPS Office website and download the free version for your operating system.
2. Install Quickly: Run the lightweight installer to set up Writer, Spreadsheets, and Presentation on your computer.
3. Edit Offline: Open your existing Microsoft Office files (.docx, .xlsx, .pptx) directly and continue working without interruptions.

No mandatory MFA or complex cloud sign-ins required for local document editing.Fully compatible with Microsoft Office formats including Word, Excel, and PowerPoint.Lightweight software that installs in seconds on Windows, Mac, or Linux.Free to use with a familiar, user-friendly interface that requires zero learning curve.

microsoft office alternative - wps office

Frequently Asked Questions

What if I don't have any backup verification methods set up?

If you lack backup methods and do not have an account recovery code, you must fill out the Microsoft account recovery form online. This process requires you to provide specific historical details about your account to prove ownership, and it may take up to 30 days to process.

How do I remove my lost phone from my Microsoft account?

After signing in with a backup method, navigate to the 'Security' section of your Microsoft Account dashboard. Click on 'Advanced security options', locate the lost device in the list of sign-in methods, and select 'Remove'.

What is a Microsoft account recovery code?

A recovery code is a unique 25-character alphanumeric string generated in your account's advanced security settings. It serves as a last resort to regain access to your account if you lose all your other verification devices and methods.

Login & Account Issues