Hi,
If I understand the issue with your PC, you want to uninstall a program but it's not listed in Programs and Features though right? Try using some 3rd party uninstaller from the net that should work just great. I would recommend a trial version of Revo Uninstaller. http://www.revouninstaller.com/download-professional-version.php. Just uninstall Revo as well from Programs and features once you've successfully uninstalled the other software you want to remove.