Windows 7 Slowly But Surely Nudges out Windows XP From the Top Spot
 

Microsoft's first attempt at replacing XP with Vista failed miserably, since Vista had many initial issues and was so poorly received, that the brand was irrevocably tarnished. However, Microsoft's second attempt with Windows 7 has been very successful, since it has always worked very well, even during its development phase and is well liked. Now, if figures from Stat Counter are to be believed, then Windows 7's share of the market has climbed to 41.64%, while Windows XP has dropped to 37.20% - still a hefty percentage and one that Microsoft will be keen to see drop to zero as soon as possible. This means that Windows 7 is now finally the most popular Windows version after almost two years since the retail version was released on October 22nd 2009, with Windows 8 due out likely in summer 2012.

http://www.techpowerup.com/152976/Wi...-Top-Spot.html