Login to Microsoft My Signins Sign-ins Portal, select "Security Info"
...
Click "Change" to the right og of "Default sign-in method"
Select "Authenticator app or hardware token - code"
...
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Login to Microsoft My Signins Sign-ins Portal, select "Security Info"
...
Click "Change" to the right og of "Default sign-in method"
Select "Authenticator app or hardware token - code"
...