diff --git a/src/Orchard.Web/Modules/Orchard.Users/Controllers/AccountController.cs b/src/Orchard.Web/Modules/Orchard.Users/Controllers/AccountController.cs
index 83e16bb7f..0c511cd9b 100644
--- a/src/Orchard.Web/Modules/Orchard.Users/Controllers/AccountController.cs
+++ b/src/Orchard.Web/Modules/Orchard.Users/Controllers/AccountController.cs
@@ -325,12 +325,6 @@ namespace Orchard.Users.Controllers {
             return RedirectToAction("ChallengeEmailFail");
         }
 
-        protected override void OnActionExecuting(ActionExecutingContext filterContext) {
-            if (filterContext.HttpContext.User.Identity is WindowsIdentity) {
-                throw new InvalidOperationException(T("Windows authentication is not supported.").ToString());
-            }
-        }
-
         #region Validation Methods
         private bool ValidateChangePassword(string currentPassword, string newPassword, string confirmPassword) {
             if ( String.IsNullOrEmpty(currentPassword) ) {