Microsoft's Joe Belfiore, left, smiles as he tries on a "Hololens" device with colleagues Alex Kipman, right, and Terry Myerson following an event demonstrating new features of Windows 10 at the company's headquarters in Redmond (01/21). 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/Elaine Thompson

A model wears the Microsoft HoloLens as he scrolls through a virtual Windows menu in this publicity photo released to Reuters January 21, 2015. Microsoft Corp on Wednesday unveiled the holographic lens device that allows users to see three-dimensional renderings of computer-generated images. The device has no wires and looks like a visor. It ups the stakes in the emerging market for virtual reality, being targeted by Facebook Inc's Oculus. REUTERS/Microsoft Corp

Microsoft's Lorraine Bardeen demonstrates a hologram device as what she "sees" is projected on a screen behind at an event demonstrating new features of Windows 10 at the company's headquarters in Redmond, Wash (01/21). Microsoft on Wednesday took the wraps off a new version of Windows and a new wearable 3D gadget it calls the HoloLens. AP/Elaine Thompson

The Microsoft HoloLens is shown in this publicity photo released to Reuters January 21, 2015. Microsoft Corp on Wednesday unveiled the holographic lens device that allows users to see three-dimensional renderings of computer-generated images. The device has no wires and looks like a visor. It ups the stakes in the emerging market for virtual reality, being targeted by Facebook Inc's Oculus. REUTERS/Microsoft Corp.

Microsoft's Joe Belfiore, corporate vice president of Operating Systems Group, speaks at an event demonstrating new features of Windows 10 at the company's headquarters in Redmond, Wash (01/21). Microsoft on Wednesday took the wraps off a new version of Windows and a new wearable 3D gadget it calls the HoloLens. AP/Elaine Thompson

Microsoft's Joe Belfiore, from left, Alex Kipman, and Terry Myerson playfully pose for a photo while wearing "Hololens" devices following an event demonstrating new features of Windows 10 at the company's headquarters in Redmond, Wash (01/21). Microsoft on Wednesday took the wraps off a new version of Windows and a new wearable 3D gadget it calls the HoloLens. AP/Elaine Thompson