stacmarie29 you will have to try and access your BIOS. There you check to see if your harddrive is still recognized. Also, check the boot order and either change it to optical drive or USB and use a booting CD or USB drive to see if you can start your computer in an OS. I would recommend a Live-CD of something like Puppy-Linux. You can run that of a CD and it will allow you to check and see if it can access your HDD and the files on that. If it cannot, than you will most likely have to replace the HDD. Once we know what make and model your computer is, I am sure we can get you to repair it yourself.