Enter your phone number details, then select Text or Call (whatever you prefer) as a verification method and click the Next button.Select A phone number from the Verify my identity with drop-down menu.Open the Microsoft Security basics page in a web browser and sign-in with your Microsoft account.How to add phone number to your Microsoft account If you already have an account with an associated phone number, skip to the signing into Windows with a password-less phone number account part. Adding or Creating a Microsoft account with Phone Numberīelow are instructions to adding a phone number to your existing Microsoft account or creating a new account with a phone number. Once signed in with your phone number, you can Windows Hello Face, Fingerprint, or a PIN to sign in to Windows 10. If you have a phone number associated with your Microsoft account, you can now use it sign in to your PC with a SMS verification. Microsoft enabled support for password-less phone number accounts in Windows 10 Insider Preview Builds for all Windows 10 editions with the release of Build 18309.

Microsoft account changing phone number