First use its own uninstaller to remove the application, but if you encounter errors, try using 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.
After that, try running AdwCleaner to make sure that there are no leftover rogue registry keys or toolbars in your system.
AdwCleaner will mark additionally items after the scanning process. Make sure to uncheck what you want to be stored.