Event ID 16408 — Domain Functional Level

Applies To: Windows Server 2008

The Security Accounts Manager (SAM) is a service that is used during the logon process. The SAM maintains user account information, including groups to which a user belongs. The SAM is attempting to change the domain functional level to a state that provides new features but has less compatibility with earlier versions of the operating system.

Event Details

Product: Windows Operating System
ID: 16408
Source: SAM
Version: 6.0
Message: Domain functional level has been changed to Windows 2000 Native. The change cannot be reversed.


This is a normal condition. No further action is required.

Domain Functional Level

Active Directory