The "Bootable" legacy ISO you've used is in fact not bootable, it relies on CDROM emulation provided by BIOS. VMs don't usually do this sort of emulation. If you set the guest OS to something like ...
Several days ago, we covered where to download a Windows 10, 8.1, or 7 ISO image file, but a common question is what do you do once the image is downloaded? The answer is make a bootable USB drive out ...