Reset Global Options to Default in Code

I want to reset all the options as if they were configured in the first install. I have reinstall Rstudio many times and also did the mv ~/.rstudio-desktop ~/backup-rstudio-desktop and defaults read com.rstudio.desktop > ~/backup-rstudio-prefs commands.
Still, the settings appear to be like I let them the last time. Instead of being reset.

Try this: