Microsoft Edge is the default web browser on Windows 10 S and Bing the default search engine in Microsoft Edge when customers are in Windows 10 S configuration. Customers are always in control of their Windows experience. When in Windows 10 S configuration, you are able to download any browser available in the Windows Store and can navigate to any other search engine website. If you want to download a browser (or any other application) not in the Windows Store, you can switch to Windows 10 Pro, at which time you can set the browser and search engine defaults of your choice.