I have dell R15 laptop. I am using this laptop since 9 months ago. Everything was working fine. I enjoyed this laptop a lot. Due to some reason I got the problem in my in my internal DVD WR. It is not working. I am not getting any light on this. So Now I need to format my PC for that I require CD ROM to install the windows operating system. But the problem is that this external driver is not taking driver software. It always show new hardware found. But driver does not install so I could not use this. What is the problem? If any solution please let me know.