Microsoft this week said that it had sold 100 million licenses of Windows 8 in the operating system's first six months. But how many copies are being used?



From Computerworld:

That's a question Patrick Moorhead, principal analyst with Moor Insights & Strategy, had at the top of his list after seeing Microsoft's milestone, which was revealed by Tami Reller, the CFO of the Windows division, in a Tuesday blog post and interviews with several media outlets.

"The challenge is figuring out what that actually means," said Moorhead of the 100-million mark. "It doesn't mean that there are that many devices out the door."

  Estimates peg 59M Windows 8 devices in use