I think that "UltraSurf9.3" cased your problem, and blocked IE and Google Chrome. So you should change UltraSurf9.3 settings, but if that didn't work you should uninstall this program.
Ok well what happened is on Tuesday I downloaded a program (Ultra Surf 9.3). Ever since then only one of my three internet browsers actually gives me internet. The one that is working and the one that I am using is Mozilla Firefox. Google Chrome and Windows Internet Explorer do not work. Internet Explored displays on every web page is internet explorer cannot display the web page. And Google Chrome displays This web page is not available. Also my sidebar that came with Windows Vista says Service Not Available. Also I downloaded the file using Google Chrome. And I ran Windows Defender and it couldn't find any problems. Can you please help?