Sorry...you've given us almost no information to work with here. What
version of Outlook are you using? What, specifically, is it that you're
trying to do? What have you already tried? What happens when you try?
Go to office.microsoft.com and sign in using your passport. Next to your
name in the upper right will be a link called My Office Online. Click it. In
the left navigation area will be a link for calendar sharing. Click it. It
should take you to the calendar management page where you can delete
calendars, change permissions or delete your calendar profile.
