How to boot from USB disk in the BIOS (Boot Menu) - ideapad, Lenovo - Lenovo Support US
Anyone ever seem BIOS like this? Anyway to enable or find the missing "Security" and "Boot" tabs? Was planning to install Linux on it but USB boot is not working/enabled. - 9GAG
How to Enter Lenovo Boot Menu & How to Boot Lenovo Computer - MiniTool