Solved Modifying advanced power plan settings using the registry

AsadAlrafidain · Jul 17, 2024

Hello
I'm trying to make a private Custom Windows 11 ISO, with integrated updates, drivers and tweaks...I've come across these advanced hidden power plan tweaks that can be done using a program called powersettingsexplorer, and wish if I could do these tweaks through the registry rather than through powersettingsexplorer, so that I can integrate them into my ISO:

Processor idle demote threshold > 100
Processor idle promote threshold > 100
Processor performance time check interval > 5000

Spunk · Jul 17, 2024

Open Registry Editor, go to the toolbar to Edit/Find, in the Find What box type or paste each of the values, minus the number, and search for the string. Right click it and choose Modify.
I don't think that will work, but give it a try.

AsadAlrafidain · Jul 17, 2024

Spunk said:
Open Registry Editor, go to the toolbar to Edit/Find, in the Find What box type or paste each of the values, minus the number, and search for the string. Right click it and choose Modify.
I don't think that will work, but give it a try.

unfortunately, I did try that without success.

hsehestedt · Jul 17, 2024

It doesn't look to me like those settings are stored in the registry. If I am reading this correctly as i briefly skim though it, it looks like these are managed with XML configuration files.

Processor power management options

The Windows 10 processor power management (PPM) algorithms implement OS-level functionality that allows the OS to efficiently use the available processing resources on a platform by balancing the user's expectations of performance and energy efficiency.

learn.microsoft.com

garlin · Jul 17, 2024

The usual method for adding a custom power profile to a Windows ISO, is by using an exported power plan. Some advanced tweaking methods may require exporting a reg file for specific kernel values, if they don't fall under a normal plan.

1. Customize a working PC with your choice of Power Plan modding tools, and export the desired power plan.

Code:

powercfg /list
powercfg /export custom.pow {GUID}

2. Copy the exported power plan to the ISO distribution, and run Post-Setup commands (from unattended file or SetupComplete.cmd) to import & activate it.

Code:

powercfg /import C:\path\to\custom.pow
powercfg /setactive {GUID}

AsadAlrafidain · Jul 18, 2024

garlin said:
The usual method for adding a custom power profile to a Windows ISO, is by using an exported power plan. Some advanced tweaking methods may require exporting a reg file for specific kernel values, if they don't fall under a normal plan.

1. Customize a working PC with your choice of Power Plan modding tools, and export the desired power plan.

Code:

powercfg /list powercfg /export custom.pow {GUID}

2. Copy the exported power plan to the ISO distribution, and run Post-Setup commands (from unattended file or SetupComplete.cmd) to import & activate it.

Code:

powercfg /import C:\path\to\custom.pow powercfg /setactive {GUID}

that did it for me...thanks
however, just wanted to note that you should add the GUID to the import command to be like this:

Code:

powercfg /import C:\path\to\custom.pow {GUID}

otherwise, the (/setactive) command won't recognize the imported power plan

XxXxX · Jul 18, 2024

Using the Registry Editor, go to ..
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Power\PowerSettings\54533251-82be-4824-96c1-47b60b740d00\be337238-0d82-4146-a960-4f3749d470c7
then select Attributes. Modify the value of "Attributes" from 1 to 2. Data should read “0x00000002 (2)”. This will uncover a hidden power option.

i use this to open up the extra power options so disable turboboost.
hope this is of help, best of luck. Steve ..

abactuon · Jul 18, 2024

List of all active power system parameters (including hidden parameters) :
powercfg /Qh >E:\PowerPlanSettingsHidden.txt

Example

### Processor performance core parking min cores; ( default 100% )
C:\Windows\System32\powercfg.exe /SETDCVALUEINDEX SCHEME_CURRENT SUB_PROCESSOR CPMINCORES 50

After switching from a laptop to a desktop, it became unnecessary for me.

Two mouse clicks.

AsadAlrafidain · Jul 18, 2024

XxXxX said:
Using the Registry Editor, go to ..
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Power\PowerSettings\54533251-82be-4824-96c1-47b60b740d00\be337238-0d82-4146-a960-4f3749d470c7
then select Attributes. Modify the value of "Attributes" from 1 to 2. Data should read “0x00000002 (2)”. This will uncover a hidden power option.

i use this to open up the extra power options so disable turboboost.
hope this is of help, best of luck. Steve ..

Where does this setting appear? could you provide a screenshot

AsadAlrafidain · Jul 18, 2024

abactuon said:
List of all active power system parameters (including hidden parameters) :
powercfg /Qh >E:\PowerPlanSettingsHidden.txt

Example

### Processor performance core parking min cores; ( default 100% )
C:\Windows\System32\powercfg.exe /SETDCVALUEINDEX SCHEME_CURRENT SUB_PROCESSOR CPMINCORES 50

this could come in handy.... thanks

XxXxX · Jul 18, 2024

@AsadAlrafidain
it appears in the advanced power settings.
control panel > power options > change plan settings > change advanced power settings.
in advanced power settings it is under.
processor power management > processor performance boost mode.

hope this helps, best of luck. Steve ..

PerpetualCycle · Jul 18, 2024

AsadAlrafidain said:
Hello
I'm trying to make a private Custom Windows 11 ISO, with integrated updates, drivers and tweaks...I've come across these advanced hidden power plan tweaks that can be done using a program called powersettingsexplorer, and wish if I could do these tweaks through the registry rather than through powersettingsexplorer, so that I can integrate them into my ISO:

Processor idle demote threshold > 100
Processor idle promote threshold > 100
Processor performance time check interval > 5000

The way to do this is to set the "Attributes" for the setting you want from "1" to "2" in the registry. Then it will automagically reveal it in the power plan advanced power ssettings. like this:

This makes it a lot easier to change the settings:

Unfortunately on major updates, these get set back to defaults ( Attributes="1"), but not the actual settings. I keep a .reg file of these so I can easily recover them and make them visible in the power plan settings, eg:

Code:

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Power\PowerSettings\54533251-82be-4824-96c1-47b60b740d00\36687f9e-e3a5-4dbf-b1dc-15eb381c6863]
"Attributes"=dword:00000002

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Power\PowerSettings\54533251-82be-4824-96c1-47b60b740d00\45bcc044-d885-43e2-8605-ee0ec6e96b59]
"Attributes"=dword:00000002

One registry setting you would want, by the description would be this:

All the power settings are under they key

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Power\PowerSettings\54533251-82be-4824-96c1-47b60b740d00

AsadAlrafidain · Jul 18, 2024

PerpetualCycle said:
I keep a .reg file of these so I can easily recover them and make them visible in the power plan settings, eg:

Code:

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Power\PowerSettings\54533251-82be-4824-96c1-47b60b740d00\36687f9e-e3a5-4dbf-b1dc-15eb381c6863] "Attributes"=dword:00000002 [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Power\PowerSettings\54533251-82be-4824-96c1-47b60b740d00\45bcc044-d885-43e2-8605-ee0ec6e96b59] "Attributes"=dword:00000002

so if I understood correctly, the above reg file make 2 hidden settings appear in advanced power plan settings....right ?

garlin · Jul 18, 2024

There's also this PS script for unhiding all the properties:

Code:

# 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).Name.Replace('HKEY_LOCAL_MACHINE','HKLM:') -Name 'Attributes' -Value 2 -Force }

Enable all advanced power settings in Windows.

Enable all advanced power settings in Windows. GitHub Gist: instantly share code, notes, and snippets.

gist.github.com

AsadAlrafidain · Jul 18, 2024

garlin said:
There's also this PS script for unhiding all the properties:

Code:

# 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).Name.Replace('HKEY_LOCAL_MACHINE','HKLM:') -Name 'Attributes' -Value 2 -Force }

Enable all advanced power settings in Windows.

Enable all advanced power settings in Windows. GitHub Gist: instantly share code, notes, and snippets.

gist.github.com

Always to the rescue.... thank you!

PerpetualCycle · Jul 18, 2024

AsadAlrafidain said:
so if I understood correctly, the above reg file make 2 hidden settings appear in advanced power plan settings....right ?

Yes, it is just a snip of my file. You can save each key from regedit into a file and merge them into one file

PerpetualCycle · Jul 18, 2024

But you just cut and paste this portion:

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Power\PowerSettings\54533251-82be-4824-96c1-47b60b740d00\xxxxxxx]
"Attributes"=dword:00000001

where xxxxxx is the key you are interested in

Edited

AsadAlrafidain · Jul 18, 2024

Thanks to all of you, I learned what I was looking for + extra cool things that should come in handy.

AsadAlrafidain · Jul 18, 2024

PerpetualCycle said:
"Attributes"=dword:00000001

you mean
"Attributes"=dword:00000002

right?

PerpetualCycle · Jul 18, 2024

AsadAlrafidain said:
you mean
"Attributes"=dword:00000002

right?

Correct. 1 would turn it back off. I just picked a random power key, dumped it, and cut the first few lines. Happened to be one with Atrributes set to 1, my bad.

Solved Modifying advanced power plan settings using the registry

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