Full error: Setup was unable to create a new system partition or locate an existing system partition. See the setup log files for more information. My drive setup is as follows: Drive 0 200gb, trying to install win 7 on this one. This was installed into the computer recently. Drive 1 Total 250GB. Has ubuntu installed Partition 1 Primary: 140gb, ext3 Partition 2 Logical, 91gb ext3 Partition 3 logical 3.9GB, swap Both drives are sata, Drive 0 is first to boot from i believe. Anyway, i had an 80gb drive originally that failed, when i removed that I rebuilt grub on ubuntu to just recognize ubuntu and its own drive (drive 1). Thereafter I stuck Drive 0 in, and tried to install Win7 on it, and got the above error. I disconnected my ubuntu drive, and the error is still present. Heading home from work now, but pile on the suggestions. Ill try them tomorrow.