Question

How to change your phone number for Microsoft two-factor authentication (2FA)?

Answer 1

Steps to Change Microsoft 2FA Phone Number

1. Sign In: Go to the Microsoft Security Info page and log in with your credentials.
2. Add New Method: Click + Add sign-in method.
3. Choose Phone: Select "Phone" from the dropdown menu and click Add.
4. Verify Number: Enter your new phone number, select "Text" or "Call," and verify it with the code you receive.
5. Delete Old Number: In the same Security Info list, click Delete next to the old number.