Right under "Start" in the upper left corner of the Start page, you'll see welcome "your username" and under that is some small print that says "account/email preferences". Click that and scroll down to "Reset Goals". Make sure you really want to do it before you commit because I don't think they can recover what you delete. I hope that helps.
Dave A.- South Central PA, USA
I still find each day too short for all the thoughts I want to think, all the walks I want to take, all the books I want to read, and all the friends I want to see. - John Burroughs