I have a few categories in WLM.  I have no idea how one called "Favorites" got added but I want to remove it.  I followed the instructions above but "Delete category" does not appear after hovering the mouse pointer over the "Favorites" category name.  "Delete category" appears in all other categories highlighted but not for the "Favorites" one.  Not idea why or what to do.  Thanks in advance for any help/suggestions!