Open the google chrome browser. Navigate to: chrome://settings/?search=search+engine .
Click on Search engine used in the address bar select Google from the list.
Open “Manage search engines” settings. In the “Default search engines” configuration, click the three dots next to Google and choose “Make default“.
If you want to delete Yahoo, click the three dots next to Yahoo and choose “Remove from list“.
source: https://www.fixyourbrowser.com/
