how to crack BIOS Password

suppose you forget your system BIOS password then how you will recover or crack it.don't worry you don't need to do big thing you can easily crack it by following these steps:- 

• Open the CPU(cabinet or laptop motherbord area)

• To observe the Motherbord

• Remove the Silver Battery from the motherbord

•  Now wait for few minutes and put back the Battery in motherbord

• Now close the cpu (cabinet)

• Now  Start your computer or laptop

• Run 

• Type a period " . " 

• Then press Enter

enjoy...........................................................................................................................................