REDMOND, Washington -- Microsoft is finally ready to deliver on Windows 10.
At its event Wednesday, the company announced that Windows 10 will be a free upgrade. We also learned more about the new Spartan browser; Cortana; Windows 10 for mobile; Office; Xbox on Windows; a Photos app; and how it all ties together. There's also new hardware: the Microsoft Surface Hub, with an 84-inch 4K display.
Then there was the real showstopper: the HoloLens headset with Windows Holographic.
Follow this live blog to learn and see everything, straight from Microsoft's campus.
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