According Cnet.com Microsoft will provide custom ROM to Android to run Windows 10, for now selected Mi 4 user can use Custom ROM of Windows 10.
So far, the program is limited to China and just to Xiaomi. So this doesn’t necessarily mean Microsoft will expand its Windows 10 transformation technology to other companies or countries. However, Microsoft reportedly does have plans to make its custom Windows 10 ROMs available to more devices in time, according to TechCrunch.
Windows 10 is slated to launch this summer in 190 countries and 111 languages. A free upgrade for anyone using Windows 7 or Windows 8.1., the new OS is designed to run on smartphones, tablets and PCs and to offer a more consistent experience across different devices.
Image from windowscentral.com and bgr.com
Source: http://www.cnet.com/news/microsoft-cooks-up-way-to-run-windows-10-on-android-devices/