Registry Mechanic Does Not Delete Registry Entries

I tried to delete the registry entries which were bad, I had 30 of them, but the these two will just not go away, even by doing them manually, such as saving as a backup then deleting it manually and remerging. They just show up no matter what I do, or so use programs like Registry Mechanic, which I found only mediocre, very far from the ratings. to delete these two entries somehow from someone who is actully knows how to without using several so called registry cleaners, which only work partially.