Perhaps you can install Perfectdisk 14 on top of the 13, it should remove old files and get perfectdisk working again. Of course you will end up with a 30 day trial, but at least you can then uninstall it.
kind of worked. but really just removed the icon and the programs list entry. the folders and install files are still there
You can try force uninstalling with an uninstaller that has the option i fit still shows on your installed list.