How to add more content to my Yahoo?

All my searched from Yahoo! are redirected to some kind of add content webpage!!! How do I get rid of this?

• My searches from the Yahoo.com home page are redirected to a "add page" website after double clicking on a search result web address. How can I get rid of this anoying and useless interuption?

• Answer:

  This is occurring due to your system being infected with a virus, known as the "Search Redirect Virus". What makes this virus even more annoying is the fact it makes itself impossible to detect with your average anti virus. It does this by the way it infects your PC. Instead of installing software or running a process, that your AV can easily detect and remove, this virus actually infects a system file. This means it avoids the process by which the AV would normally detect viruses but still cause the redirect effect to occur. The system file it infects is one used by all web browsers on your system to handle redirect requests. Such requests are made frequently when you click a search result link from any search engine, in this case Yahoo. It will redirect you to advertisements because the hacker has an affiliate click based sponsor, so when you are redirected it generates a unique click and money for the hacker. The best way I can suggest to you to remove this virus would be to use software called ComboFix. This is excellent at dealing with the problems of this virus and easily eradicates it from your system. I would suggest you follow this tutorial to remove the virus: http://www.personalcomputerfixes.com/spyware/how-to-remove-the-google-redirect-virus/