Vista adding the user group domain admin to the administrator group.

Issue

When running Vista in high security level Vista will add the NT group "Domain admin" as a user group in Vista at startup.
Is it possible to avoid this?

Product Line

TAC Vista

Environment

Vista 5.1.7

Cause

When running Vista in high security level Vista will add all users in the computers administrator group as users in Vista at the startup of the Vista server .
This is not possible to prevent. 

Resolution

Either run Vista in low security level or take away the "Domain admin" group from the administrator group on the computer.