Unable to dismiss or delete an Outlook calendar reminder.

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I cannot dismiss or delete an Outlook calendar reminder. I receive the message " Cannot turn off the reminder. You may be reminded again. The end date you entered occurs before the start date." How can I delete this reminder, or at least not have it reoccur.

Diane Poremsky

Senior Member
Outlook version
Outlook 2016 32 bit
Email Account
Office 365 Exchange

Vinay - G

You can follow the steps given below to delete the items in Reminders folder.

Download MFCMAPI tool fromhttp://support.microsoft.com/?ID=291794

1. Run MFCMAPI on the desktop

2. Go to Session->Logon and Display Store Table

3. Select your profile

4. Select Mailbox

5. Expand " Root Container"

6. Right click “Reminders" and select " Open Contents Table"

7. New window launches with Title Reminders

8. Select all the reminder items listed there, Right click and select " Delete Message"

9. Close MFCMAPI

Reopen Outlook.



I am having the problem of Reminders not popping up at the scheduled time set. e.g., if my appointment is at 10 am and i set it to remind me 1 hour before, it used to pop up at 9 am to remind me. Now that is not happening. I have Office 2010 under Windows 7. My machine is 64-bit.

I even ran MFCMAPI and tried the reminder; but still no luck.

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