So that totally did not work - instead I now get a snail's pace bootup where every desktop icon draws itself slowly. And no wall paper change in the boot screen; there is a "background.bmp" file that is Untouchable in the System32 oobe folder that is the boot screen. You need permission from the TrustedInstaller to change it.
So now I will try rolling back to undo the damage.
This is a WIN7 pro clean install on a AMD quadcore system.