Lenovo IdeaPad 100-15IBD Quick Overview, Bios Config and USB Boot - YouTube
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
Solved Windows 7 x86 USB installer not detected by Lenovo Ideapad 100S Windows 10 Forums