我在注册表里找到以下的地址将它们删除了
HKEY_LOCAL_MACHINE\Software\Microsoft\Internet Explorer\Search\CustomizeSearch\
http://ie.search.msn.com/{SUB_RFC1766}/srchasst/srchasst.htm
HKEY_LOCAL_MACHINE\Software\MicrosoftI\nternet Explorer\Search\SearchAssistant\
http://ie.search.msn.com/{SUB_RFC1766}/srchasst/srchasst.htm