[DaPaus]

After some research I have to take my statement back. Resetting the CMOS will not work, an HP Elitebook was made for businesses and to put an extra layer of protection the BIOS Password is saved on a seperate chip. So resetting the BIOS configurations will not work. You could try to contact Costumer Support but you will have to proof your ownership and Dell Costumer Support doesn't have a great reputations.