The application will be installed in the correct location: c:\program files(x86).
For additional CS4 installation help, go to.
You can also install the software in trial, then input your new and previous serial numbers in the serialization screen shown during launch. If it cannot find it, it will ask you to input the serial number of the product being upgraded.
If the installer does not launch automatically, navigate to the application folder found at the root level on your disk and double-click Setup Mac OS to start the installation process.