In My Interpretation

There are two types of adware, the good and the bad. The product is normally software, which is usually free, and the ads will be used to pay the author for the software. The good will alone installation, if the user chooses to install, and can be removed easily by the user with the addition or removal of programs for the function or program to uninstall. The bad news is that spyware collects data on the user and the user habits navigation bar to intrusive advertising in your browser. The evil will, without the consent of users and is usually very difficult to remove.

The only way to remove this is to use a software application, which is encoded especially for spyware / adware delete. Most programs, which will help to remove the spyware, which will also remove adware.