Hi there! I have been googling for the solutions, none of them works on my machine unfortunately... Model: iMac 24" 2009 early model Spec: iMac 9,1 Duo Core 2.93, 4GB ram OSX: Mountain Lion 10.8.2 Problem: Unable to install drivers through bootcamp on Windows 7 I have already tried a few methods as below, but none of them works... #1) Direct setup I tried to double click on the setup file from Windows Support folder, but it didn't work and says: "Boot Camp x64 is unsupported on this computer model" #2) Troubleshooting I tried to right click the "Boot Camp x64" folder, then click "start program", but it says: "run as setup.exe". #3) MS-DOS In order to have the permission to do so, I followed instructions from other mac users that, cmd.exe --> msiexec /i Bootcamp64.msi, but it could not run either. #4) Orca Finally, I have read some users used an app called 'Orca' to drop out some of the launch conditions. But obviously it didn't work for me either... I am very depressed...I do not understand what was the problem and why other could have overcome this, but not me. Is there any other way to successfully install Win7 64bit on my iMac? Is it the problem of the version of BootCamp? Should I download Bootcamp 3.0 to try out? Thanks in advance for any comments!!