How to install Ubuntu 18.04 on Windows 10 -

This tutorial will guide you step by step though the installation of Ubuntu 18.04 on the Windows 10 operating system. The Ubuntu 18.04 system is available as an application via Microsoft Store.
This is a companion discussion topic for the original entry at

Can I install ubuntu without Microsoft Store?

How to install without Microsoft Store?

what to do, if i open the ubuntu and it says “root@LAPTOP-3P0UHCRB:~#”, instead of “installing, it may take a few seconds”?