Go to https://mysignins.microsoft.com/security-info and sign in as normal

 

You will see something like this


Graphical user interface, text, application, Teams

Description automatically generated

Please click the add Method if nothing is listed and you will get some options like the following


Graphical user interface, text, application

Description automatically generated

I would advise to add Phone number on it which can be set to either a call or txt

Also I would setup the Authenticator App, all Android devices have Google Authenticator on them which you can use, or you can use the Microsoft App which it will also give you a link for.


Graphical user interface, text, application, email

Description automatically generated


If you click on use a different App, it will then give you a code to scan on your mobiles, which it will then make a 6 digit code from and it will ask you to confirm and then will be done.


Once you are happy this is all setup, click on the top which says default sign in Method choose what you would like.