engine - 5:47 pm on Oct 30, 2012 (gmt 0)

Four million upgrades doesn't include oem sales, of course.

Microsoft Corp Chief Executive Steve Ballmer said on Tuesday the company has sold 4 million upgrades to Windows 8, signaling a strong start for its new operating system which launched on Friday.Microsoft Sells 4 Million Upgrades To Windows 8 [reuters.com]