A required CD/DVD device driver is missing, usb installation

Hum...Same bugg, I've try many things but nothing work.

change my sata port of dvd

try to install with a burned at low speed iso x64 form the net and with the original dvdx86

try with a bootable usb key, ever changing the port

try to change the boot device in the bios, kicking all the value of the dvd player and remove it from the pc

I'm gonna try to call harry potter, the last thing i don't try

edit: he don't want to help me , so I m still looking for solution

I've fing a way: the bios emulate my drives (hdd and dvd) as ide, so i think that, when windows start install , it see the drive as sata and so it start to bugg.

ps: sorry for my english

I think I know the cause of why this happens; it is not a bug from MS. When I read this solution to try a different port it helped me remember something…  One of my USB ports is USB 3. Now for me this was what the problem was. Rather than switch ports half way through like this post suggests I started a fresh install from scratch using one of my USB 2 ports which worked.

When installing it I completely forget at the time that the port I had it plugged into was USB 3; I am just used to always plugging everything into that port for faster speeds. This is the cause of the error but it is very misleading as it implies the issue is with a CD/DVD driver. The problem is that Windows 7 and 2008 doesn't ship with USB 3 support. The reason I am sure of this is because once I had my suspicions I also remembered the first time I installed Win 7 on this same laptop. At the time I used a DVD so I had no problems installing Win 7 but after all its updates and auto detection of drivers it installed USB 2 support on other ports but one device still shown as unknown. Once I downloaded the USB 3 drivers from the manufacturer’s website that port started to work.

So in my case there are two good reasons there that reinforce my belief that it is because I installed it from a USB 3 port. I bet it is the same for you rest of you. Can any others confirm? ­

Ok, I've actually solved this myself via the help of a thread on tom's hardware. I'll post it here for anyone else struggling with the same issue:

OK now is the truth. This is the solution.

I assume all of you is using USB drive to install.

When Windows is asking for driver, just click Cancel. You will be brought back to the welcome screen. At the welcome screen, remove your USB drive, insert it back to DIFFERENT USB PORT. Click Install Now again. The installation process will be like usual.

This problem happened to all new version of updated Windows 7 installer. I think, it is due to failure of Windows installer to remain its detection to the USB drive. It lost the connection, and became confused, don't know where to find the USB drive it used to read before.

When we re-insert the USB drive, Windows installer will detect the USB drive back, and continue like usual.

Good luck and cheers! TQ.

Man, you are AWESOME.  Worked great.  Thanks!

TomNeild , i don't know what to say , first thanks a looooooooooooooooooot !! second , i don't knwo much in computers , i've searched hours and hours and no one has a good answer but you got the answer . Thanks so much !! it worked 100% at the first try !!