13. Windows Shares Market Share for July 2007 All versions - 90.00% Windows XP - 81.40% Windows Vista - 5.41% Windows 2000 - 3.74% Windows 98 - 1.05% Windows NT - 0.64% Windows ME - 0.56% Windows CE - 0.06% Client OS Market Share for July, 2007 Windows XP - 81.40% Windows Vista - 5.41% Windows 2000 - 3.74% Mac OS - 3.36% Mac Intel - 2.61% Windows 98 - 1.05% Linux - 0.75% Windows NT - 0.64% Windows Me - 0.56% Nintendo Wii- 0.14% Other - 0.24%