Search engine back to Safari default

Hi , how do I change my search engine back to safari I seen someone say “  just go to the  menu at the top of your screen, then click on System Preferences... -->

General --> click the "Default web browser" popup and select "Safari.app" from the list of options. After that, next time you click a web link in any app it should open in Safari. “ but i don’t see that can somebody maybe make a video of them doing it ?