the "unitcked" driver in that overview is installed with NTI CD/DVD burning software. Unticked since it has not been digitally signed (digitally signing a driver costs extra money). Unless you did install that software recently, there is nothing to be worried about.
I want you to try this: grab a bootable CD or DVD. A live Linux disc is preferred, but you can also use a Windows install disc (but then watch out for the "press any key to boot from the CD" message).
If you can not boot from a bootable disc, your drive's hardware might be faulty. Else, there might be a software problem.