Boot process isn't enabled on my Lenovo Y520 but I encounter this issue when using USB.
Device blocked due to current security policy.
No, boot mode is not set to UEFI; it uses a legacy setup.
uefi
UEFI
No information about an admin password in the BIOS was found.
yes
Do you recall the password? Start with all settings back to default and then turn off secure boot once more.
I have the password and I attempt to reset it once every four attempts.