Microsoft Windows 10

Microsoft’s Lorraine Bardeen demonstrates a hologram device at an event demonstrating new features of its flagship operating system Windows at the company’s headquarters Wednesday, Jan. 21, 2015, in Redmond, Wash. Executives demonstrated how they said the new Windows is designed to provide a more consistent experience and a common platform for software apps on different devices, from personal computers to tablets, smartphones and even the company’s Xbox gaming console. (AP Photo/Elaine Thompson)