Windows 10 is making strides on desktop - it already makes up for more than 20% of the desktop OS market, having surpassed all Windows versions aside from the venerable Windows 7. Windows 10 on mobile... well, fans might want to sit down. It has reached 14% of W10 phones and half of those are up to Windows 10 Mobile Anniversary Update. Growth is accelerating too. That's the good news. The bad news is that Windows Phone 8.1 has 77% of the market, more if you add v8.0. The battle-hardened Lumia 520 is still one of the most popular devices out there, accounting for 10.4% of all Windows...
Source: http://www.gsmarena.com/windows_10_mobile_update_picks_up_speed_still_on_only_14_of_w10_phones-news-20117.php
