Forms Authentication is locked in IIS 7

I have a dual authenticated site that is using Forms Auth in the web config of the application. On one single page I need to switch the Auth method to WindowsAuthentication to handle intranet Network login credentials. When in IIS 7 to manage the authentication method of th开发者_如何学Pythone sigle page I am concered with the option to DISABLE FormsAuthentication is locked. I have tried numerous methods to unlock it from Feature delegation, AllowOveride in the web config and manually changing settings in the ApplicationHost file, all to no avail. I am looking for the means to remove the LOCK on the FormsAuthentication in IIS 7

try using appcmd ex:

%windir%\system32\inetsrv\appcmd unlock config /section:anonymousAuthentication %windir%\system32\inetsrv\appcmd unlock config /section:windowsAuthentication