Statistics provided by Valve’s Steam platform for the month of March 2014 show that Windows 8.1 is the only Windows version that actually boost its share, while the other builds currently supported by Microsoft lost ground in the last 30 days.While Windows 7 64-bit remains the number one OS version on Steam with a share of 50.47 percent, according to Valve data, while Windows 8.1 64-bit comes next with 13.01 percent.
As you can see, the difference between Windows 7 and 8.1 is pretty huge, but while Windows 7 actually lost 0.08 percent of its users last month, the latter actually recorded a boost of 1.19 percent as compared to the month before. The biggest drop was posted by Windows XP 32-bit, dropping 0.58 percent from the month before, according to the official figures.
The 32-bit version of Windows 8.1 is still far behind and is now powering only 0.37 percent of the desktop computers also running Steam, while Windows XP 64-bit is the last Windows OS version in the charts with only 0.30 percent.
Overall, Windows is still running on 95.04 percent of the computers with Steam installed and last month recorded a decline of only 0.13 percent.