If a "product definition file" or "simkey" error occurs during installation or uninstallation, corrupted residual files may be the cause.
Guide on Fixing CyberLink PowerDirector 11 Simkey File Issues cyberlink powerdirector 11 simkey file 34 fix
Sometimes the "Simkey" error occurs because the Windows Registry has an invalid reference to the license file. How to completely uninstall CyberLink PowerDirector If a "product definition file" or "simkey" error