My Win7 64bit Home Premium SP1 install was stymied by this cd/dvd message, too. On a hunch I replaced the older 40-pin IDE cable with the preferred 80-pin cable, and the installation cruised right on through. I have also read that some people have just used brute force to keep trying the reinstall, and after 4 or 6 attempts, the request for a "driver" is ceded. Inadequate installation help either way from Microsoft's installation message. I'm on an ASUS P8H67-M Pro board with 8GB DDR3 1333 (Corsair XMS3) with an older Sony DRU-820A DVD drive and a 2TB Hitatchi SATA-3 HDD.