Trying to delete registry Sub key tree

Hey I am trying to delete this sub key tree but I keep getting errors. my code is in screen shot. anything I see on google does not work. i get the error that the subkey does not exist when it it litterally in my regedit (i will put another ss of my regedit) the exact path is here: (for regedit Computer\HKEY_CURRENT_USER\SOFTWARE\Classes\Local Settings\Software\Microsoft\Windows\Shell )