I hate to break to Cyberlink but PowerDVD 14 most certainly did not uninstall PowerDVD 13. In fact, it left me a total mess. The item from add/remove programs was deleted but pretty much nothing else. CLcleaner for PowerDVD 13 was useless. I spent hours manually removing traces of PowerDVD 13 from my system. Can't Cyberlink do a better job with install/umninstall?
My environment is windows 8.1. I had powerdvd 13 installed and upgraded to powerdvd 14.
The honest answer to the question is that the installation process for powerdvd 14 leaves behind a mess. That is really bad with a product like powerdvd that has services that run in the background.
It's ugly cleaning it up. I won't even go into how I did it. Now that people's PC's were messed up how about supplying a functional CLcleaner for powerdvd 13?