Greetings, I'm running a clean NTFS installation of Vista Business on an HP/Compaq 8510p laptop in a domain environment. When I run Windows 7 Enterprise "Install Now" from DVD the screen will display "setup is copying temporary files" followed by "setup is starting" then a pop up dialog box called "Install Windows" stating "Windows setup cannot determine if this computer supports installing this version of windows" Windows Upgrade Advisor runs clean stating Upgrade available. The time between the copying screen and starting setup is seconds where-as if I boot into the DVD the copying process takes minutes. I'm performing this as a precursor to company wide upgrade and the outcome will have a major affect on our direction. Thanks in advance.