To uninstall this software you can go to Start -> Control Panel -> Add/Remove Programs (Windows XP) or Programs and Features (Windows 7), click on the program's name and hit Uninstall. If you can't remove it this way, you can use Revo Uninstaller. This is a powerful tool that will force the software to uninstall by wiping all traces of its presence from the computer. Also, it is advised to use AdwCleaner to make sure that there are no leftover rogue registry keys or toolbars in your system.