I can't find any documentation on installing PSoc Creator in silent mode. The Installer extracts much .msi files. I can install these from the command line but after that i can't start PSoc Creater. It gives an error out which you can see in the attachment. The log file is empty and in the Event Viewer i can't find any useful information. Maybe someone have an idea.
The official answer is (unfortunately) silent installs are not supported.
Installing the MSIs by hand can cause you a lot of problems later on, I would recommend removing them and installing via the normal mechanism.