How to enable windows Authentication in IIS 7.5

iis-7.5windows-authentication

i need to enable Windows Autenthication for a specific website on IIS 7.5

If I open "Autenthication" I just see 3 options:

Anonymous

Based on Form

ASP.NET Representation

(3 above translated by me, I have italian IIS)

I've been told that I should see also "Windows AUtenthication" in that list.

In "modules" for the same website I see "Windows Authentication", with code "System.Web.Secuitiry.WindowsAuthenticationModule", Module type is "Managed",and Type is "Inherited".

I am totally stuck.

Best Answer

Do you have the Windows Authentication feature installed for IIS?

In PowerShell:

Get-WindowsFeature Web-Windows-Auth

Is it installed? If not, then:

Add-WindowsFeature Web-Windows-Auth