But seriously though, learn to fish. The answers aren't hard to find if you look, know what to search for, and are at least somewhat discriminating in your investigation.
I say go one step further and learn to fish harder and don't use any of these scripts. I can't even imagine trying to debug an issue on my machine after running one of these "makes arbitrary changes" scripts.
Do it all manually if for no other reason than you know all the changes you made and know where all the different settings actually are.
Do it all manually if for no other reason than you know all the changes you made and know where all the different settings actually are.