Adware is software that generates advertisements such as pop-up windows or hotlinks on Web pages that are not part of a page's code. Adware may add links to your favorites and your desktop. It will often change your home page and your search engine to sites that earn income from various advertisers. This income is dependent on, for example, how many people visit the adware site, or how many people click on the links or advertisements at the site. Ads are not bad by themselves but they become a problem when they are unauthorized. Unfortunately, many adware programs do not give users enough notice or control. They cause irritation and generally disrupt the activites of your online experience.