Possible Duplicate:
Why does WMI Provider Host ( WmiPrvSE.exe ) keep spiking my CPU ?
Every time my computer resumes from sleep, connects to a network, or disconnects from a network, one CPU core is fully utilized for several seconds by a system network process "WmiPreSE.exe". What is the purpose of this process and what is it doing that requires this CPU usage? The system is running Windows 7 Home Premium x64 Service Pack 1 and has a quad-core AMD Phenom II N930 processor at 2.0 GHz.
Edit: The system is a custom-built HP Pavilion dv6z-3000 Select Edtion laptop.