Possible Duplicate:
Reset or remove the BIOS password on my laptop
I forgot the BIOS password for my laptop (Dell). I have to enter the password before my computer boots. What can I do to get access to my laptop again?
Possible Duplicate:
Reset or remove the BIOS password on my laptop
I forgot the BIOS password for my laptop (Dell). I have to enter the password before my computer boots. What can I do to get access to my laptop again?
Contact Dell Technical Support. After proving ownership of the machine, they can give you a master password to unlock your laptop.
I know some methods.
So I would suggest you the first method. I hope it helps.