Using the minicalendar in the task pane, display the date that contains the appointment you want to open.
Click the appointment you want to delete.
Click the Delete button on the Outlook toolbar.
The item is removed from the Calendar.
If you find that you need to cancel a scheduled appointment, you can delete it from your calendar. Doing so will help you keep track of which appointments were kept and which were not.
Deleting a Meeting
To delete a meeting from the Calendar, perform steps 1?3 in this task. Outlook asks whether you want to email a cancellation notice to other meeting participants; choose Send Cancellation and Delete meeting or Delete Without Sending a Cancellation. Then click OK.