BrianFagioli quotes a report from BetaNews: If developers do start leveraging the Windows Store, the Windows 10 S experiment could take off, as users won't find a need to install legacy programs. This will largely depend on web browsers being available there, as many users dislike Edge. Thankfully, Microsoft is allowing third-party browser installs from the Windows Store. Unfortunately, there is a big catch -- you cannot change the default. Buried in the Windows 10 S FAQ, the following question is presented -- "Are there any defaults that I cannot change on my Windows 10 S PC?" Microsoft provides the answer: "Yes, Microsoft Edge is the default web browser on Microsoft 10 S. You are able to download another browser that might be available from the Windows Store, but Microsoft Edge will remain the default if, for example, you open an .htm file. Additionally, the default search provider in Microsoft Edge and Internet Explorer cannot be changed."