power options

# This is a tiny little script which disables power management on every NIC (Wired/Wireless)
# The script is searching for "PCI" (to only match "real" NICs, not virtual ones like e.g. the ISATAP Adapter...) in
# HKLM\SYSTEM\CurrentControlSet\Control\Class\{4D36E972-E325-11CE-BFC1-08002BE10318}
# (which is the default location for NIC related settings) and adds the DWORD "PnPCapabilities" with the Value 56 (decimal) to disable the power management.
#
# Works on XP/Server 2003, Vista/Server 2008, Windows 7/Server 2008 R2, Windows 8/Server 2012/Server 2016 and Windows v.Next :-)
# In order to run this script you might need to change the Powershell Script Execution Policy. Type "get-help about_signing" in a Powershell Window for more information.
#
# Version 1.0
# USE TOTALLY AT YOUR OWN RISK!

$SearchString = "PCI"

dir 'HKLM:\SYSTEM\CurrentControlSet\Control\Class\{4D36E972-E325-11CE-BFC1-08002BE10318}' -rec -ea SilentlyContinue |
       ForEach-Object {
      if((get-itemproperty -Path $_.PsPath) -match $SearchString)
      {
        $_.PsPath
    Set-ItemProperty -path $_.PsPath -Type DWord -Name PnPCapabilities -Value 56
      }
   }