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

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

  $s = ($powerSettingInSubgroubTable | 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
  
  $s = ($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 ""
  
}

is "$descr = [string]::Format("# {0}", $s.ElementName)" correct formatting? Because it does not return the description. In fact it causes an error...

Exception calling "Format" with "2" argument(s): "Value cannot be null.
Parameter name: args"
At D:\Powercfg-Shit\enable-all-advanced-power-settings.ps1:30 char:3

• $descr = [string]::Format("# {0}", $s.ElementName)

• + CategoryInfo          : NotSpecified: (:) [], MethodInvocationException
  + FullyQualifiedErrorId : ArgumentNullException
  

I forgot to backup default settings. can someone post me original default hidden/unhidden attributes please?

ps - (btw, script works just as it should, i used wind10, administrator account).

Since I have used above script in windows powershell, I have lost all advanced power settings and can not get them back (even the ones I had before are gone now). Windows is diplaying "Energyplaninformation not available" now.
I tried to undo my changes by setting most settings back to +ATTRIB_HIDE and only some to -ATTRIB_HIDE - but it did not work.
See screenshot below.
Any idea how to fix this?

Launch your Registry Editor (Windows button and type “Regedit“)
Navigate to: “Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Power“
Select the entry called ‘CsEnabled‘
Change the “Value data” to “1” and select “OK“ (in the case it's alreaedy 1 try 0 and reboot and again to 1)
Reboot your machine

@banicpe thx very much! Setting Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Power 'CsEnabled‘ to "0" and rebooting, worked for me. I can see all Advanced Energy Options now! Great!

Anyone knows why MS hid those settings in the first place? Is it dangerous to fiddle around with them (e.g. with processor performance settings)?

@banicpe @ar-ml and all others who will landing to this page from StackOverflow or google

also helpful
export
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Power\PowerSettings
and change all
"Attributes"=dword:00000001
to
"Attributes"=dword:00000000

and import PowerSettings back

I have written my own version which works with PowerShell 7 and every Windows version: Unlock-PowerCfg.ps1

# Unlock Power Plans by disabling "Connected Standby"
Set-ItemProperty -Path 'HKLM:\SYSTEM\CurrentControlSet\Control\Power' -Name 'CSEnabled' -Value 0 -Force

# Unlock hidden options
$PowerSettings = Get-ChildItem -Path 'HKLM:\SYSTEM\CurrentControlSet\Control\Power\PowerSettings' -Recurse -Depth 1 | Where-Object { $_.PSChildName -NotLike 'DefaultPowerSchemeValues' -and $_.PSChildName -NotLike '0' -and $_.PSChildName -NotLike '1' }
ForEach ($item in $PowerSettings) { Set-ItemProperty -Path ($item).Replace('HKEY_LOCAL_MACHINE','HKLM:') -Name 'Attributes' -Value 2 -Force }

@Velocet, small fix:

Set-ItemProperty -Path 'HKLM:\SYSTEM\CurrentControlSet\Control\Power' -Name 'CSEnabled' -Value 0 -Force
    # Unlock hidden options
    $PowerSettings = Get-ChildItem -Path 'HKLM:\SYSTEM\CurrentControlSet\Control\Power\PowerSettings' -Recurse -Depth 1 | Where-Object { $_.PSChildName -NotLike 'DefaultPowerSchemeValues' -and $_.PSChildName -NotLike '0' -and $_.PSChildName -NotLike '1' }
    ForEach ($item in $PowerSettings) { Set-ItemProperty -Path ($item).Name.Replace('HKEY_LOCAL_MACHINE','HKLM:') -Name 'Attributes' -Value 2 -Force }

god thank you @Velocet @nick4fake guys!!!

Thanks @Velocet, your script actually works WIN 11 also, your amazing

what would i change to DISABLE all advanced power settings?