At first login your Gamil account. Click on My Account Click on Sign-in & Security Click on Signing in to Google Then click on arrow key. click on get started Now use your password Select your country and wright down your phone number Once done click on next check your phone and wright down here 6 digit Google code Now press turn on Done. 2 step verification has been turn on now. If you don’t want to run it then turn off .
As found on Youtube