The CMOS and BIOS setups are both specified in the system BIOS. Some computer manufacturers refer to this setup menu as the BIOS setup, while others refer to it as the CMOS setup.

CMOS is a place where BIOS stores the date, time, and other system configurations. So, CMOS and BIOS are related, but one is a physical chip, and the other is firmware used to boot up your system.

How to Reset BIOS Settings. You can reset your PC's BIOS settings to their factory defaults by selecting the Restore Defaults option within BIOS or by removing the CMOS battery from an unplugged ...