In the latest build of Windows 10, it was forbidden to change the default browser when clicking on links from an email client. This is reported in the company's blog.
“Windows Insider members who receive updates as part of Skip Ahead have begun testing the ability to open links from the WIndows email client through the Microsoft Edge browser, which provides the best, most secure, and reliable experience with Windows 10,” says 17623 build description.
Thus, even if you change the standard browser, all links from the email application will open in Edge.
It is indicated that with this browser, users will become "more productive, organized and creative." However, according to Netmarketshare, only five percent of PC owners use it, while Google Chrome has a 60 percent share.
In December 2017, Microsoft removed the Google Chrome installer from its own app store. Accordingly, users of Windows 10 S could not launch the browser, since the installation of new programs is possible only through the Microsoft Store. Also in this version of the system for the first time appeared a ban on changing the standard browser.