You can remove any software installed on your computer by using the Windows Uninstaller. Go to Start > Control Panel > Add or Remove Programs (Windows XP) or Programs and Features (Windows 7) > select the program and hit Uninstall. If you have problems with an application that refuses to uninstall this way, you can use a third-party tool like Revo Uninstaller. This utility is specially designed to remove any program by wiping all traces of its presence from your PC. Also, if you believe that your computer is infected with malware, use Malwarebytes to remove the threats.