Microsoft sold more than 60 million copies of Windows 7 by the end of 2009. This quick growth has continued through the first quarter of 2010 and now Windows 7 has 10% market share.
Windows XP dropped to 64.46 percent market share, Windows Vista to 16.01 percent, and Windows 7 jumped to 10.23 percent. Mac operating system has 5.55 percent, Linux 1.03%.
Source: marketshare.hitslink.com
