Check your hardware configuration in your computer. How many hard drives do you have? on your IDE Cable, the big skinny Grey cord, make sure you plug the end cord of the IDE cable to your hard drive and your CD/DVD ROM drive to your middle one and the other end to your motherboards primary IDE port(Should say on your motherboard were to plug into Primary IDE) and change your jumpers on your CD/DVD Rom to slave(Look on the drive it should say were to plug it in for the jumpers) and your hard drive you use to store your OS on to Master,|| and your other hard drive you use to store your photos and all on master also(plug this on the secondary IDE port if there isn't one, refer to step 1) and start up your computer(but remember if you have a second hard drive, use the end of the ribbon cable to your hard drive and the other to the motherboard(usually the blue part that goes into the motherboard) and it should work. if it don't tell me your hard drive configuration and I shall help you. and I think that error message shows if these steps didn't help, go into your bios and change the settings on the drives to
1:Primary Master Drive Boot Device - CD/DVD Rom
2: Primary Slave drive - hard drive
3: Secondary Master Drive - Hard drive.
if these don't work refer to this post and I will try and help you on your problem, but post your hard drive configuration and maybe some pictures of your bios so I can help properly.