The most common way to get adware is a freeware installation package. How does Retina Defense get on your computer The guide was developed by experienced security experts who discovered a method to remove the adware out of the computer. To find out how to get rid of Retina Defense, we recommend to read the few simple steps added to this post below. This is another reason why the adware software should be uninstalled without a wait. Such kind of behavior can lead to serious security problems or user info theft. Even worse, adware can gather your Internet surfing activity by recording URLs visited, IP addresses, internet browser version and type, cookie information, Internet Service Provider (ISP) and websites visited.