What to do after i get to internet options in control panel?

I have comcast mail but foolishly had them set up outlook. When I click on outlook, all my mail from comcast is switched over to it. I want to get rid of outlook and just keep comcastWhat to do after i get to internet options in control panel?
http://www.youtube.com/watch?v=a_PeLV80z鈥?/a>

lip care