With universal usb installer I could install in a usb flash dive three differents usb drives to rescue:
– Parted Magic.
– Kaspersky Rescue Disk.
– Falcon 4 Boot CD.
To boot the computer with one of this drives in bios: disabled ‘secure boot’ and change ‘uefi’ to ‘legacy’. Then I enabled F12 boot menu. I restarted the computer, and pressing F12 I could choose the usb flash drive to boot from it. It worked with the three.