My machine came with a Philips DVD +RW DVD8801 DVD Drive. It worked fine until one day I was deleting unnecessary programs and apparently I deleted something that WAS necessary because my DVD player stopped working. It still shows up in my Device Manager. It has a yellow exclamation point beside it. the Device Status in Properties says "Windows cannot load the device driver for this hardware. The driver may be corrupted or missing. (Code 39)". The drive does not show up at all in MY COMPUTER. When I put a DVD or CD in, the light comes on then goes off and nothing happens. I have tried updating the driver, rolling back the driver, uninstalling and reinstalling the device, running diagnostics (which says there is a problem with the device) but nothing works to fix it. I have been toying around with it for about 6 months off and on trying to get it to work to no avail. I NEED my DVD player to work for a graduate class I am beginning on Monday. All my lectures are on DVD. So today I decided to install another DVD player that I had here. It's an external DVD player that I had bought about two years ago but never used. It was still in the box. I hooked it up and windows found it right away and installed it but I got a message saying that there was a problem with the installation and that it might not work properly. It does the exact same thing as the other one! So now I have two DVD drives showing up in the Device Manager both with yellow exclamation points and neither will show up in My Computer. Obviously, it's not the drive(s) themselves. Can somebody help me figure out what's wrong? Thanks!

Rhonda