Open Google Chrome
Click the three dots in the top-right corner
Select Settings
Click Search engine
Choose Google from the Search engine used in the address bar dropdown
Click Default browser
Click Make default if prompted
On Windows, open Settings
Go to Apps
Select Default apps
Choose Google Chrome under Web browser
On Mac, open System Settings
Go to Desktop & Dock or General, then Default web browser
Select Google Chrome
If the search bar still uses another engine, remove or disable other browser defaults in your system settings
Restart Chrome if needed