Hi i seem to be having a problem with my Dvd/ Cd rom driver,,, it say "Windows cannot load the device driver for this hardware.The driver may be corrupted or missing(code 39)" when i try to update driver nothin happens,,,i have also uninstalled and tried to reinstall to no success.

Also ive tryed a system restore FIVE times and all of them have been unsuccessful with it saying "System Restore Incomplete". I have read in several sites about deleting the upper and lower filters in the Registry but im unsure as to weather this really safe and afraid of making more damage,,,im a student and i really cant afford to be buying anew one so im little weary about entering Registry,,,unless its a complete nesscessy.........i would be very grateful if someone could help me thank you very much .x.x..x