# secure boot

# se da errore
verification failed .... security violation
# se possibile disabilitare secure boot oppure

# ok
# press any key
# enroll key from disk
# VTOYEFI (che sarebbe la chiavetta usb)
# ENROROLL_THIS_KEY_IN_MOKMANAGER.cer
# continue
# yes
# reboot

fonte
https://www.ventoy.net/en/doc_secure.html