In addition to SIW2's suggestion. In Windows Explorer, The Organize Menu/Folder and Search Options. On the General tab, make sure 'Show all Folders' is checked and on the View tab make sure 'Hide empty drives in the Computer folder' is unchecked.
"Windows cannot verify the digital signature for the drivers required for this device. A recent hardware or software change might have installed a file that is signed incorrectly or damaged, or that might be malicious software from an unknown source. (Code 52)"
I had to restore my computer because the new video driver for my card wasnt displaying. I did have both cd roms showing up once I went through Regedit but cannot remember how to get where i need to be to delete some files so the cd roms show up