Today at a Morgan Stanley Tech Conference, Microsoft’s Peter Klien announced that 90 million Windows 7 licenses have been sold to date, making it the fastest selling operating system in history.
Microsoft released Windows 7 on October 22, 2009. The operating system has received praise from consumers, businesses and the media. In November 2009, Windows 7 managed to surpass Apple's Snow Leopard market share in just two weeks. In early February it was revealed that Windows 7 had reached 10% market share in just three months.
Screenshots of a Windows 7 post RTM build showed up on the web in February, fueling speculation that Microsoft is compiling early Windows 8 builds. The successor to Windows 7 will likely be available in 2011 as an ex-Microsoft worker penned July 2011 as the RTM date for Windows 8.
Microsoft is currently readying its first Service Pack for Windows 7. A beta version is expected in June with a public release in September this year.