One: Go to Start in the search box, enter “Turn windows features on or off” in the features window, Click-> “Internet Information Services” Click-> “World Wide Web Services” Click-> “Application Development Features” Check all (enable) the features except CGI. Two: You need to assign permissions for IIS_IUSRS on the local machine. Right click on the … More Possible solutions for “HTTP Error 500.19 – Internal Server Error”