How do I Remove http://www.nationzoom.com/ Homepage? Need Help with Getting Rid of nationzoom.com Redirect Virus

Nationzoom.com or nation zoom is a kind of browser hijacker that can block your accessing wanted certain websites.  Once it gets on your computer, it will modify the internet browser settings on the affected system. Nationzoom.com will hijack the default homepage and search engine into http://www.nationzoom.com/. Each time you open your browser, you will be redirected to this site without your permission.  If you click any link to open a certain, nation zoom page will open up automatically. As long as this browser hijacker runs into your computer, it can affect all types of internet browsers such as Internet Explorer, Mozilla Firefox, Google Chrome, Yahoo, and Bing.  In addition, nation zoom will show up many pop-up ads or links when they are browsing online.  It is very nasty browser hijacker that you are difficult to uninstall it even though you have tried your restore your browser back to the previous one, but it will come back quickly after you opening your affected browsers. There is detail instruction on getting rid of Nationzoom.comwebpage.