Guide

During the installation process, keep a sharp eye out for any suspicious options. Installation options such as Express, Default, or Typical installation could mask the addition of unasked-for apps. Always select an Advanced or Custom install option, if offered. For example, iLivid’s default installation setting automatically installs other, possibly unwanted, apps — as shown in Figure 4. You must use Custom installation to uncheck the extra apps.

 
source:http://windowssecrets.com/top-story/avoiding-those-unwanted-free-applications
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