Windows XP Pro: Setting “Generate VRDB when computer is idle” does not take into account any applications/tasks launched with different credentials using “Run as …”.
So, although the computer is running at 90% CPU utilization, VRDB generation kicks in. Not so nice.
The idle state is considered when you’re not moving mouse. Just leave it a while so the VRDB starts generating database and then move the mouse just a bit and VRDB generating will stop.