3) SINGLE BROWSER Internet Explorer is gone as the default browser, replaced by Edge. You get some functional improvements, such as a virtual marker to draw arrows or circle an entry on a Web page to share over email, Facebook and other means. Even better, you no longer have separate browsers for desktop and tablet modes. With Windows 8, when you opened a website in desktop mode, it didn't show up in tablet mode. You had to open it again. With Windows 10, it's a unified browser, so you pick up where you leave off if you switch modes. Some websites, including those from Google, aren't as smooth on Edge as they are on other browsers, but the problem might be limited to Microsoft's Surface tablets. The sites work better on an HP laptop upgraded to Windows 10. You can still get Windows 10 on Surface and install a different browser, such as Google's Chrome. In addition, IE will still be available for older websites that need it, but it will stay on the sidelines as Edge takes center stage.