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 ...
XDA Developers on MSN
I keep a bootable USB with 10 free tools on it, and it has fixed every PC problem I have had this year
A tiny multi boot USB setup that holds dozens of ISOs for live tools and installers, ready to revive any PC.
The virtual machine may fail to boot from an ISO because the boot order prioritizes the virtual hard disk over the optical drive, resulting in a “No bootable medium ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results