Desktop Operating System Market Share
September, 2015

Operating System Total Market Share
Windows 7 56.53%
Windows XP 12.21%
Windows 8.1 10.72%
Windows 10 6.63%
Mac OS X 10.10 4.91%
Windows 8 2.60%
Linux 1.74%
Windows Vista 1.73%
Mac OS X 10.9 1.21%
Mac OS X 10.6 0.48%
Mac OS X 10.7 0.40%
Mac OS X 10.8 0.39%
Mac OS X 10.11 0.21%
Windows NT 0.09%
Mac OS X 10.5 0.09%
Mac OS X 10.4 0.02%
Windows 2000 0.02%
Mac OS X (no version reported) 0.01%