Assalam.0.Alaikum,
dosto jab mein window 7 install karta hun tou sara process yahan tak normal jata hai,

and then ye error aata hai,
[img]http://1.bp.*************/-ugefOgcZ1ZQ/TwkaBb2SYUI/AAAAAAAAD4w/SGiUQbmMHbQ/s320/A required CDDVD drive device driver is missing windows 7.png[/img]
koi mujhe thk se masla samjha de,
mein pc ka bhut kam ilm rakhta hun,
asan alfaz mein smjhana.
thankx.