As you might have caught on by now, those reviled Metro apps from Windows 8 haven’t been eradicated—but they have been molded to fit desktop sensibilities. In Windows 10, launching a Metro app on your PC opens it in a desktop window, rather than dumping you into a full-screen app. The windowed apps have a mouse-friendly toolbar of options across the top, and even alter their interface to best fit the size of the window. Nifty.