Even after you change your default search engine, the search box on Edge's new tab page uses Bing. You can instead use the address bar to search with whatever engine you've set as the default.

Windows searches uses Bing by default. However, you can use the MS Edge Redirect tool to switch the search to Google or other search engines.

If you're using Microsoft Edge but prefer to use Google as a default search engine, then you might want to adjust certain settings.

Windows 10's Cortana uses Bing for web searches by default with no official option to change it, but there are ways to get Cortana to embrace Google.

Among them, you can now search the web directly from the Start menu. However, it will always use Bing. The Bing2Google extension for Chrome will redirect your searches to Google instead.