[GeronL]

60 0million

they’re dreaming big

[adorno]

60 0million

they’re dreaming big

Actually, you're wrong.

600 million is correct, and the number could actually be much higher.

The 600 million would not be "new" PC sales. That number represents the number of existing devices that could be upgraded to the new OS. The installed base of Windows devices, is likely more than 1 1/2 billion, so, the number that could be upgraded is likely way more than 600 million.