F10 malfunction in a Compaq presario

by pressing F10 the system does not save the changes nor restore defaults I
believe that was made by a technician I could not reach any more, as a result
the system is not responding to the recovery CD is there some how out of this
?
thanks

Is the cd drive ahead of the hard drive in the BIOS boot order?

"elgammal" <za3bolla@7ambool.koss> wrote in message
news:92E9A6D8-4D79-48EE-924F-51016A7441B9@microsoft.com...
> by pressing F10 the system does not save the changes nor restore defaults
> I
> believe that was made by a technician I could not reach any more, as a
> result
> the system is not responding to the recovery CD is there some how out of
> this
> ?
> thanks