Windows 7 Jumps Over 20% in Global Usage Share Ahead of 2011 - Softpedia
Windows 7’s strong uptake rate continues to hold steady even as the operating system has entered into its second year on the market.
Released commercially on October 22nd, 2009, Windows 7 now accounts for 20.87% in global usage share according to statistics made available at the start of this year by Internet metrics company Net Applications.