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As of September 2009, the most common desktop operating system is Windows XP, with about 70% of the market share. Next is Windows Vista, with 18% of the market share. Mac OS X 10.5 is next with 3% of the market share. Windows 7 has 1.5% of the market share. Mac OS X 10.4 has about 1% and is virtually tied with Linux.

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15y ago

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