With this below steps, you can install Window XP/7/8/8.1/10 on an android tablet or android phone. You can do this if your smartphones run on Android KitKat, Lollipop or even android marshmallow.

Using this tool you can install Android apps on your Windows 10 Mobile device. Check out the following guide with step-by-step instructions for how to install Android apps on Windows 10 Mobile.

You can't directly install Windows on an Android tablet, but you can certainly use it on one. Here's how to use Windows on an Android tablet.