I am trying to install windows 7 ultimate x64 on a new build, I am getting the error in thread title when it begins to install. I've scoured this forum to see what others had similar issues and tried the fixes. I tried with one stick of ram, tried re-burning the iso, i've used 3 different discs one 32 bit the other 2 x64. The funny thing is, I have installed ubuntu 10.10 succesfully from a usb flash drive, but could not install ubuntu from a disc. The ubuntu cd was not a burnt copy but a legit disc i ordered from canonical. the windows install wizard lets me create partitions and delete them, it even looks like it tried to format the hard drive because when i go to attempt to install again evidence of the previous failure is there as a system and primary partition. since the 10.10 installation from flash drive went without a problem i do not believe there is a problem with the hard drive. the dvd drive is sata and is connected properly. I am very upset because as of now i have a very expensive brick sitting on my desk. my system info is as follows amd athlon II x4 630 cpu at 2.8 4gb ram asus m4a78lt-m motherboard wd caviar black 640gb HD sata lite-on dvd multi recorder sata ati xfx 512 mb video card my boot settings go to the hdd first and i tried using the popup menu to boot from disc, for some reason it looks like it has a problem writing from the dvd drive to the hard disk. if anymore info is needed, ask, i appreciate any help. oh and the latest copy is straight from msdn and my license is legit but that is not relevant since i can't even get to the point of authenticating my copy i hope to hear back, thank you.