Debian Buster VirtualBox Virtual Machine Installation – Quick-Start Guide
Hi! The Tutorial Shows You Visually and Step-by-Step How to Install Debian Buster 10.x GNU/Linux GNOME/KDE/Xfce/LXDE/Mate/Cinnamon/LXQt Desktop on a Oracle VirtualBox Virtual Machine for Windows/Mac/Linux.
And to Install Debian 10 on a VirtualBox VM is Quick and Easy, just follow the detailed Visual instructions.
Especially relevant: this setup make use of the Debian Buster CD1 Image File ISO, but you can achieve the same result with all the other Releases.
Finally, included instructions to Getting Started with Debian 10 Desktop.