What options do you have in your bios?
Try to find a menu in your Bios that has Boot Devices.
In that try to see if your HDD and CD rom drives are active. If not then activate them in boot order CD/DVD then HDD if possible.
In your Main menu you would see if any devices are working. If not they're may be a problem.
1) Wiring are loose.
2) Device is fried
Or just give me the model number and I'll try to find something for you reguarding the bios on HP site.
If you look at the Bootdisk.com and try the repair you disk. Using CHKDSK or Scandisk program from the downloadable files.
If the repare doesn't work. Then you will have to FDISK and then Full Format.
Did you get a recovery disk from HP? Normally that would work. But you said before you can't see CD/DVD drive?
__________________
|