While Android was not designed to work as a desktop operating system, those who would like to employ it in this manner can use Phoenix OS. The early 2.0 Alpha build is based on Android 7.1 and integrates a taskbar, a start menu, support for windowed apps, and more.
http://www.notebookcheck.net/Phoenix-OS-2-0-Alpha-brings-Android-7-1-to-desktops.209088.0.html
Just for a update, Phoenix OS made is super easy to install the OS on hard disk.
Ref: quickfever.com/dual-boot-phoenix-os/