Determine the make of your hd then visit that manu web site to download &
create the bootable floppy/cd testing utility.
However if its not detected in the bios, either its dead, you have a
loose/failing connection, or your motherboard is dying
"srdiamond" <(E-Mail Removed)> wrote in message
news

EF84CAA-887F-46CF-B7C0-(E-Mail Removed)...
> Symptoms that I felt close to certain meant my hard drive was dead
appeared,
> and my computer would not boot for several days. The cpu got through the
> bios, but I got an error message shortly after that primary disk 0 was not
> there. I was just checking to get the precise error message. This time,
after
> pressing "On," the computer fully booted.
>
> If the hard drive isn't dead, what else would prevent the computer from
> recognizing the disk. I had checked the bios and everything was OK. The
only
> change is that I detached my internet connector, which has never
previously
> interfered with the disk.
>
> Is it just that the drive is "almost dead"? Or is there some other
> malfunction (or best hope) some bad setting, that can create the
appearance
> of death? And is my external hard drive, which recently also seemed to die
> and still appears to be dead also simulating death?
>
> If anyone can answer even one of these questions, i would be grateful.