Hello, Both my CD and DVD drives have malfunctioned. They have power, however 'My computer' does not recognise them. The Hardware menu shows them, however has a yellow warning triangle alonside. the narrative is an error code 39. I have tried to install the drivers thru windows, however this has been unsuccessful as 1/ my back up disk is CD and 2/ i'm not sure that the driver is being searched for by windows as the drive isnt there?. Is this a registry fault - I am wary of downloading a registry checker as their seems to be a high probability of virus, having read some reports on this.