File folder opening problem

When I double click on any folder, the "open with" menu comes up. When I
check the open sequence by right clicking on any folder, it shows 2 "open"
options plus explore. The first open links to 'open with' and the second
open does the normal thing and opens the file folder.

The file associations show an open and explore option for file folders, not
2 open options. Default restore does not help probably because the normal
associations are there plus the one extra 'open' that sits on top of the
right click menu.

How can I edit out the offending 'open'? Is there a place in the registry I
need to address?

Thanks