Enable all advanced power settings in Windows.

enable-all-advanced-power-settings.ps1

# List all possible power config GUIDs in Windows
# Run: this-script.ps1 | Out-File powercfg.ps1
# Then edit and run powercfg.ps1
# (c) Pekka "raspi" Järvinen 2017

# https://stackoverflow.com/a/22156833
if (-not ([System.Management.Automation.PSTypeName]'PowrProf').Type)
{
Add-Type -TypeDefinition @"
using System;
using System.Runtime.InteropServices;
 
public static class PowrProf
{
	private static readonly Destructor Finalise = new Destructor();

	public static IntPtr subGroupGuidPtr = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(Guid)));
	public static IntPtr powerSettingGuidPtr = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(Guid)));

	[DllImport("powrprof.dll", EntryPoint="PowerReadSettingAttributes", ExactSpelling=true, SetLastError=true)]
	public static extern UInt32 PowerReadSettingAttributes(IntPtr subGroupGuid, IntPtr powerSettingGuid);
	
	public static UInt32 PowerReadSettingAttributes_wrapper(string subGroupGuid, string powerSettingGuid)
	{
		try {
			Marshal.StructureToPtr(new Guid(subGroupGuid), PowrProf.subGroupGuidPtr, true);
			Marshal.StructureToPtr(new Guid(powerSettingGuid), PowrProf.powerSettingGuidPtr, true);

			return PowerReadSettingAttributes(subGroupGuidPtr, powerSettingGuidPtr);
		} catch {
			return 0;
		}
	}

	private sealed class Destructor
	{
		~Destructor()
		{
			// https://stackoverflow.com/a/18709110
			if (PowrProf.subGroupGuidPtr != IntPtr.Zero)
				Marshal.FreeHGlobal(subGroupGuidPtr);

			if (PowrProf.powerSettingGuidPtr != IntPtr.Zero)
				Marshal.FreeHGlobal(powerSettingGuidPtr);
		}
	}
}
"@
}

$powerSettingTable = Get-WmiObject -Namespace root\cimv2\power -Class Win32_PowerSetting
$powerSettingInSubgroupTable = Get-WmiObject -Namespace root\cimv2\power -Class Win32_PowerSettingInSubgroup

Get-WmiObject -Namespace root\cimv2\power -Class Win32_PowerSettingCapabilities | ForEach-Object {
  $tmp = $_.ManagedElement
  $tmp = $tmp.Remove(0, $tmp.LastIndexOf('{') + 1)
  $tmp = $tmp.Remove($tmp.LastIndexOf('}'))
  
  $guid = $tmp

  $s = ($powerSettingInSubgroupTable | Where-Object PartComponent -Match "$guid")

  if (!$s) {
    return
  }
  
  $tmp = $s.GroupComponent
  $tmp = $tmp.Remove(0, $tmp.LastIndexOf('{') + 1)
  $tmp = $tmp.Remove($tmp.LastIndexOf('}'))
  
  $groupguid = $tmp

  if (([PowrProf]::PowerReadSettingAttributes_wrapper($groupguid, $guid) -band 1) -ne 1) {
    return
  }

  $s = ($powerSettingTable | Where-Object InstanceID -Match "$guid")
  
  $descr = [string]::Format("# {0}", $s.ElementName)
  $runcfg = [string]::Format("powercfg -attributes {0} {1} -ATTRIB_HIDE", $groupguid, $guid)
  
  Write-Output $descr
  Write-Output $runcfg
  Write-Output ""
  
}