Outlook 2010 duplicate tasks

[RayMilhon]

We're still using Office 2010 at work slowly upgrading to Office 2016 but I'm working remotely so Not on the priority list for the upgrade.  I had a problem with my mouse earlier today and replaced the mouse but now all of my tasks are showing duplicates but if one is completed they both show completed.  How do I get rid of the duplication?

[#2]

@RayMilhon 

Are you aware that Microsoft will no longer support Office 2016 and 2019 apps after October 15, 2025? So you will be upgrading these applications again in three years. I recommend upgrading to the latest application, so you don't have to "relearn" everything you "just learned." 😁

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Not sure why you ended up with duplicate entries. I am sorry to say it could be it's an unsupported product. The only way to delete the duplicate entries is to delete them one by one. It's not ideal. 

Teresa