Simple script to change network adapter from Static IP to use DHCP on the local computer

strComputer = "."
Set objWMIService = GetObject("winmgmts:" _
    & "{impersonationLevel=impersonate}!\\" & strComputer & "\root\cimv2")
Set colNetAdapters = objWMIService.ExecQuery _
    ("Select * from Win32_NetworkAdapterConfiguration where IPEnabled=TRUE")

For Each objNetAdapter In colNetAdapters
    errEnable = objNetAdapter.EnableDHCP()
    errEnable = objNetAdapter.SetDNSServerSearchOrder()
Next