In the settings of Qweb Converter, you could redirect all common search engines to a single one. If you don’t like this feature, you’ll also be able to turn it off.
With this feature the so called “Cortana Search”, could be taught to search, with your preferred search engine.
The default search engine of “Cortana” is Bing and without Qweb it couldn’t be modified. Qweb allows you to set the “Cortana Search” to the search engine of your choice.