The application should feature its own uninstaller that can be used from Control panel > Programs and Features. Once the uninstaller is activated, there will be the possibility to remove the application using automatic instructions. However, if by any means you encounter issues while uninstalling or the application refuses to uninstall, take advantage of Revo Uninstaller. Even if it can't uninstall the application normally, it will force it to uninstall by wiping out all traces of its presence from the system.
To make sure the application is off the system, close and restart Revo and look for the app in the list.