Security Failure Audit Account Logon Event ID 675

[Itsme]

I am not able to find a proper place to post this, so please excuse. Anyways, the Primary Domain controller that I was using is filling the Failure Audit EVENT that can be checked below:

Source: Security
Event ID 675
NT AUTHORITY\SYSTEM
Computer DC!
Pre-authentication Failed:
User Name: Administrator
User ID: MyDomain\administrator
Service Name krbtgt/Mydomain
Pre-authentication type: 0x2
Failure code: 0x18
Client address 127.0.0.1

I have checked for krbtgt Built in account and noticed that it is disabled. I have tied to enable this account but Windows gives me this error "Windows cannot enable object krbtgt because: Cannot perform this operation on built-in accounts." Any help.

[Hockson]

There is a supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in the below link. Apply this hotfix only to systems that are experiencing this specific problem. This hotfix might receive additional testing.

http://support.microsoft.com/kb/328570