Computers which have been manufactured in the last few years will allow you to enter the CMOS by pressing one of the below five keys while. Usually it's one of the first three only which are as follows!

• F1
• F2
• DEL
• ESC
• F10

A user has to press this key when they see a message similar to the below example when the computer is booting. Some of the older computers may also display a flashing block to indicate that when to press the F1 or F2 keys.For entering the BIOS setup enter Press <F2> to enter. If your computer is a new computer and you are not sure of what key to press when the computer is booting, try pressing and holding one or more keys from the keyboard. This will cause a stuck key error on the screen, which may allow you to enter the BIOS setup easily.