Hi
the driver does have a i warning on it, When you try and update it, it says its up to date ??
this is whats listed against it and the message thats in the General properties.
Mat****a dvd-ram uj-850 ata device
Windows cannot load the device driver for this hardware. The driver may be corrupted or missing. (Code 39)
Click 'Check for solutions' to send data about this device to Microsoft and to see if there is a solution available.