To start creating and using a Windows Live Calendar, head to WindowsLive.com/Online/Calendar. Click Go to Your Calendar and then sign in using your existing Windows Live ID. If you don’t have a Windows Live ID, click the Sign Up button and follow the steps to obtain one.
Begin adding events and appointments to your calendar. From the Windows Live Calendar main window, click the New drop down arrow. Select Event, and the Add an Event dialog will open. Enter the name, location, date and time. Click Save to add the event to your calendar. You can also click Add More Details, which allows you to add a “charm" to the date on the calendar, set a reminder, make the event recurring, invite others and more. When you are done, click Save and the event will be added to your Windows Live Calendar.
Click New and select To-Do for a similar calendar entry.
If you are hosting an event, you can add it to your Windows Live Calendar and invite others in just a few, easy steps. Click New and select Social Event. Enter the details of the event, select the theme (Birthday, Sports, and so on), and click Create. Click Invite Guests and follow the steps to let people know about the party.