I get this pop up, when I boot up every morning: There is no email associated to perform the the requested action.Please install an email program or, if one is already installed, create an association in the Default Programs control panel.
It just won't go away. It's very irritating. Help! x(

Run (Sysinternals) Autoruns & see if it points anything out.
https://docs.microsoft.com/en-us/sysinternals/downloads/autoruns

It appears you're not alone. Take a look at this: https://answers.microsoft.com/en-us/windows/forum/windows_10-other_settings/there-is-no-email-program-associated-to-perform/02f6d7b4-e65a-472e-87dc-3046bb501dd3?page=1

I didn't see a solution in the discussion but there are some ideas to try.

Jim.