Windows 7 Use Grows to One-Third of Global OS Market

Windows 7 ended May with 33.22 percent of the global operating system market, according to data collected by StatCounter.

Between April and May, Microsoft's latest OS increased its share by 1.31 percent, continuing its steady growth since its release in October 2009.

Windows XP, which is scheduled to lose free security update support in April 2014, is still the leading OS with a worldwide market share of 45.83 percent, according to StatCounter's numbers. However, XP's share has declined as Windows 7's has grown. Windows 7's U.S. market share surpassed XP's in April, according to StatCounter.

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