If starting in MS-DOS, the setup program would install and boot a minimal version of Windows 3.1 and then fire up a 16-bit Windows app to do much of the heavy lifting. The same 16-bit app would ...

Once you're at the Windows 10 desktop, you'll need to install all of the proper drivers for VirtualBox. In the VirtualBox UI, select "Devices," then select "Insert Guest Additions CD image." ...