In Windows 10, Microsoft will be breaking from the past. Somewhat. And at least when it comes to web browsers. It will still ship with Internet Explorer "for legacy reasons", but it wants people to know that it is working on the next big thing, presently codenamed "Spartan". Unlike the bloat that is usually associated with IE, Spartan is absolutely minimal. It doesn't even have visible window borders! But more than just its looks, Spartan has a few talents to show, including a special friendship with Cortana.