New stats on the desktop operating system market reveal Windows 10 is now the fourth most popular OS. The recently launched OS was responsible for 5.21% of web traffic in August, according to NetMarketShare. Windows 10 has been used by the public since October 2014, but it was fully released in late July 2015.

Windows 10 comes in behind Windows 8.1, Windows XP, and Windows 7. Though, it is already doing better than Mac OS X Yosemite and Windows 8.

Compared to the adoption of Windows 8 a few years ago, Windows 10 is doing much better and is being picked up at a faster rate. The fact that Windows 10 is a free upgrade for many Windows users is helping.