It's like having an unwanted guest in your home
SOLUTION!!! You can't successfully delete calendar reminders in Outlook
Can't dismiss a reminder in Outlook 2007, 2010, 2013, or 2016? I recently had this strange problem where I created a calendar event in Outlook with a reminder attached to it, the event passed, I dismissed the reminder, but it didn't go away! The reminder popped up every time I opened Outlook.
Not only that, I deleted the calendar event thinking the reminder would go away, but it didn't! So the reminder is still alive even though there is no event to connect it to! Weird!
Finally I figured out how to remove the reminder from a forum post. It's really weird what you have to do to remove the Outlook reminder.
