Since Windows 7 was released five months ago, it has captured twice the usage share than did Vista in the same time period according to NetApplications.com, a California based web metrics company
Windows 7’s trajectory has been faster than Vista’s ever since the former’s release, with the newer operating system beating Vista to the 4 percent mark by several months. By the end of January 2010, Windows 7’s usage share was 7.5 percent, also double the 3.75 percent that Vista enjoyed by the end of its fourth month