Single-pack of Microsoft Windows 8.1 64-Bit OEM software on DVD. Package includes DVD and Certificate of Authenticity (COA). Windows 8 has been reimagined to be all about your customers. Put what matters most right on their Start screens. They can get instant access to people, apps, sites and more, spend less time searching and more time doing. Windows 8 is smooth, intuitive, and designed to let them do what they want, the way they want.