I am trying to upgrade my laptop form Window Vista Business to Window 7 Ultimate. I have run through the Window 7 Upgrade Advisor and found no issue. When it tried to installed Window 7, it will successfully complete Copying of files and will halt after attempting to perform expanding Files for a while. It just return setup failed and only option is to click OK and it stop installing. I already have the latest patch for Vista and turned of anti-virus or firewall. Any ideas what is happening here ?