Redirect Cortana web searches from Bing to Google.

 Windows 10's Cortana provides a great way to quickly launch a web search

 Chrome won't natively redirect your Cortana searches
 you will have to use a third-party extension Download  Chrometana here

Chrometana’s options.

 After you’ve installed Chrometana from the Chrome Web Store, type chrome://extensions into the address bar.
 Scroll down until you see Chrometana and click Options.
 A new page will open, allowing you to choose
 Google, DuckDuckGo, or Yahoo as your preferred search engine for Cortana.

 Click the search engine of your choice

 close the tab,
 then do a search via Cortana.
 The results will open up in Google Chrome instead of Bing