+ 0 Votes Trusted sites list Mr.Wiz 7 years ago I think you can add them to the trusted sites list in IE. Other than that, the websites need a new security certificate that meets MS's new specs. + 0 Votes How Do You Install the Certificate? Answerfactory 5 years ago My company VPN uses SSL ( VPN over SSL ) but I always get the invalid security certificat message. How do you get the certifacte into in file so that you can import it into the computers Trusted Certificate Store?