Hello hope someone can help.a virus completely

hi,

A Virus Would Corrupt or remove/Change drivers.
You need to remove The Virus.
You should then remove The DVD Drive Manually from The Machine.
Start the Computer without The Drive, then power Off the Computer.
re-install the Drive, boot up and Hopefully it should be detected in ( found new Hardware ) if not, go to add new hardware wizard, and see if it,s detected there. A Virus Can Actually lock-Off a Drive.

Mike @ Compurepair.