the only operation that I performed were share c:\inetpub\wwwroot folder with the user administrator without removing existing ACLS.
After this, web site show me this error:
Errore HTTP 401.3 - Unauthorized: Access is denied due to an ACL set on the requested resource
If I create a new simple html page, I obtain the same error.
If I give "everyone" rights to this html page, it works.
How can I properly restore acls on that c:\inetpub\wwwroot?