Yes, of course, undoubtedly, unquestionably.
Step1: Go to an electronic shop
Step2: Buy a CMOS battery (Cost at max 20/-)
Step3: Open cabinet.
Step4: Remove motherboard CMOS battery.
Step5: Insert new battery.
Step6: Close cabinet.
Step7: As ur BIOS settings are reset, change them accordingly from BIOS
Bas, done.