Lenovo BIOS Key
Generally the F2 key is used to enter the Lenovo’s notebook’s BIOS Setup, but some new models have a special button called Novo to replace Lenovo BIOS Key.
If your Lenovo uses F1 or F2 key you can access to your BIOS by start pressing on to your key a few times to your BIOS setup key just after Power ON your computer from OFF state.
Please keep in mind that some models like Yoga Series have compact keyboards so you might need to press Fn + BIOS Setup Key. For example Fn + F2.
It is much easier if you have a Novo button on your laptop.
All you need to do is pressing the Novo button when your computer is OFF. It will turn on and show you a menu.