Lenovo P1 Gen 4 Bios -

, which automatically checks for and installs the correct BIOS version for your specific model. Manual Update:

You can downgrade to any version as long as "BIOS RollBack Prevention" is disabled in Security settings. Warning: Downgrading may cause Windows to crash if the new UEFI drivers are removed. Only downgrade if you are experiencing a verified regression.

However, even the most powerful hardware is useless without a well-tuned foundation. That foundation is the (Basic Input/Output System)—officially referred to by Lenovo as the UEFI firmware .