I am trying to clean up my stuff too. but you have not mentioned which browser or clean-up tool you are using, avast i’m guessing. If it is an undesired add-on just go to the browser setting and remove it I think. Or just remove it with avast then just go back and reset your search engine and home page. If it is IE you can just go to the settings and disable it because it might be part of something you installed and did not choose “Do Not Install” upon installation. It might affect that program if removed but I don’t know.