I can't get Windows 7 Ultimate (64bit or 32bit) to install on my mid 2010 MBP 2.4 Core2Duo 4Gb Ram 250gb hdd). I created a 40gb partition successfully, but I only have A DVD of Windows 7 Upgrade. I have an ISO (legally obtained) of the full version. When I try to install from the upgrade disc with custom installation, not upgrade, I get to "Expanding Windows Files" and then it hangs at 0% forever. I have a 320gb external hard drive. I have already restored my computer with Time Machine today. Still, no luck. Does anyone out there know what to do? I appreciate your help in advance.