

The boot order in the VM settings is incorrect.If you insert the bootable disc into the virtual optical drive of VM incorrectly, the VirtualBox fatal no bootable medium found error can occur. Since some fragments of the ISO image are coincidently located on bad blocks of the hard disk, the ISO image will be unreadable.

In some cases, you cannot boot the VM from an ISO image if it is stored a damaged hard disk drive.

When trying to create a new VM or start an existing VM, lots of users fail to boot and get the error message “No bootable medium found system halted”. What Causes the VirtualBox No Bootable Medium Found Error
