If you’re using a laptop, here are some boot menu keys for popular brands, just in case you forget your bootable menu key:

Laptop Brands	Boot Menu Keys
Dell	F12
Lenovo	F8, F10, F12
ASUS	F8, Esc
HP	F9
Acer	F12
Samsung	F12

So when it comes to desktops, the boot menu key might vary depending on the motherboard brand:

Desktop Brands	Boot Menu Keys
Gigabyte	F12
Lenovo	F12
ASRock	F8, F11
Intel	F10
ASUS	F8
MSI	F11
Biostar	F9