Every time I try to start the Laptop, I am getting this error "Drivelock HDD Bay Password" with a long key next to it. I have never set a password on this laptop and when I don't enter a password, the system displays' No disk error'
I tried to access the BIOS menu to reset the window, but it ain't allowing me after I press F10

I called the HP, but they say you have to change the whole Hard Drive, and I can't afford to lose this hard drive. I have all my pics, files and everything you can think of
Any help?
Here is the computer specification
HP 6710b Business Vista with Intel Centrino Duo