Unfortunately, there’s no way to directly install the Windows operating system on most Android tablets due to the difference in hardware and limited access to the bootloader.

Use Android as bootable USB. Learn how to successfully install Windows 11/10 on a computer from Android phone using DriveDroid.

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.