Can't Uninstall Paragon (Or Reinstall)

Hello,

I grabbed the Paragon NTFS software trial for windows. A couple hours later I bought it and tried to uninstall the trial so I could use the paid version. It then crashed during uninstall, after a restart, resulting in me having to manually dig up every file path and regedit spot that the program is contained in.

Now, when I try to use the Uninstall/Repair wizard, it stops prematurely, saying there was an error. My machine is (I think) scrubbed entirely of all the previous files.

What can I do?