■Windows 8、シェア伸び悩み。わずか2.2％

Operating System,Total Market Share
Windows 7, 44.49%
Windows XP, 37.19%
Windows 8, 5.40%
Windows Vista, 4.24%
Mac OS X 10.8, 3.28%
Mac OS X 10.7, 1.69%
Mac OS X 10.6, 1.68%
Linux, 1.25%
Mac OS X 10.5, 0.41%
Windows NT, 0.17%
Mac OS X 10.4, 0.09%
Mac OS X 10.9, 0.04%
Windows 2000, 0.04%
Windows 8.1, 0.02%
Mac OS X (no version reported), 0.01%
Win64, 0.00%
Windows 98, 0.00%
Mac OS X Mach-O, 0.00%

http://www.netmarketshare.com/operating-system-market-share.aspx?qprid=10&qpcustomd=0