Microsoft Windows 8 / 8.1 Professional OEM 64 bit

Start Screen, Mouse, keyboard and now Touch, Apps from the Windows Store - Open the Store right from your start screen to browse and download apps for cooking, photos, sports, news, and a lot more many of them free, millions of streaming songs - Windows 8 also includes the Xbox Music app, which gives you access to a whole world of music, Sign in with your Microsoft account to any of your Pcs running Windows 8 and you will immediately see your own background, display preferences, and settings, Desktop with its taskbar, folders, and icons is still here and better than ever, with a new taskbar and streamlined file management, Windows 8 starts up faster, switches between apps faster, and uses power more efficiently than Windows 7, Windows XP Mode: Hyper V