You might have to physically unplug the leads for this cd/dvd then plug them back this should activate the found new hardware wizard or

you might have to uninstall then restart your computer then reinstall your DVD/CD then reinstall the driver for this device

if your computer came with a motherboard disk the drivers could be on it
click start control panel system and security scroll to sytem tab you will see device manager scroll down cd dvdrom drives if you see a yellow question or exclamation mark? ! or a red x right click

you will need to update the driver or
select properties general troubleshoot, select driver click to reinstall drivers click update driver

you might need to download

http://download.cnet.com/slimdrivers-free/3000-18513_4-75279940.html

SlimDrivers automatically updates PC drivers with real-time scanning and cloud technology. The first cloud-based utility for updating and maintaining drivers, SlimDrivers provides instant optimization of the interaction between a computer and its system components and periperhals, such as printers, graphic and sound cards, motherboards, USB ports, game controllers and other devices and hardware.

SlimDrivers scans a PC, identifies the correct drivers needed, and retrieves them from the cloud, automatically installing the most current, precise drivers for each individual PC. SlimDrivers features a one-click, start scan button on its product homepage, which begins the process automatically to scan a PC and identify out-of-date or broken drivers. Then, seamlessly, SlimDrivers creates a personalized driver profile of that PC, and accesses the online cloud database for the most up-to-date, customized driver software.

hope this helps you