Outlook Calendar Problem: Reminders Showing Twice

For some reason Outlook (I am using 2010) started showing each of outlook calendar reminders twice last week. I put up with it for a week… until it got too annoying. Here’s how I fixed the issue.

Research on the web showed two solutions. I tried both and the second one worked for me.

Option 1: Use the cleanreminders switch when starting Outlook

This one did not work for me but it may be the solution that works for you.

1. Quit Outlook
2. Click Start-Run
3. Type Outlook.exe /cleanreminders (don’t forget the space after the exe) and press Enter

Option 2: Check your Outlook data files to see if any file is listed twice

Here’s what did work for me (I recommend you do the cleanreminders first anyway)

I checked my Outlook data files and found that my main Outlook PST was listed twice. I removed one and everything was back to the way it should be.

To check your Outlook data files:

1. Quit Outlook
2. Go to your Control Panel and double click Mail.
3. Select the Data File tab
4. IF AND ONLY IF you see the same data file listed twice, select the second one and click Remove.
5. Restart Outlook.

Did any of these two methods work for you. Do you have a different solution. Please leave a comment on the blog.