Say you need to run on a laptop battery vintage or simply non-demanding applications for an extremely long time.
Here is a little breakdown of mandatory things to do:

  • turn off in BIOS unneeded devices like camera, sd-card reader, fingerprint scanner, gsm-modem, wifi, bt or whatever you are not using
  • turn on power saving features like various C-power states
  • turn off hyper-threading and hi-core count [if you have such ability]
  • lower screen brightness to acceptable level
  • check my [quick] and [comprehensive] optimization FAQs
  • get rid of [unneeded services and bloat applications]

Also you can use core parking utility [Park Control] , but in this mini-guide i’ll show you how to set power related things up via internal Windows 7 tools.
First go to:

* Control Panel ► Power Options ► Select Power Save plan
* Control Panel ► Power Options ► Power Saver ► Change plan settings ► Dim the display after 2 minutes
* Control Panel ► Power Options ► Power Saver ► Change plan settings ► Change advanced power settings

Options to tweak here:

* Wireless Adapter Settings ► Power Saving Mode ► Maximum Power Saving
* USB settings ► USB selective suspending ► Enabled
* PCI Express ► Link State Power Management ► Maximum power savings

Also consider to decrease GPU power consumption in Windows Power Options:

* Intel Graphics Settings ► Intel Graphics Power Plan ► Maximum battery life

…. or separate driver settings, if you have newer internal GPU or discrete video card.

And finally the most important ones:

* Processor power management ► System cooling policy ► Passive
* Processor power management ► Maximum processor state ► 48%

Choose Max CPU state based upon your preference.

As for me, i’m doin’ really looooooooong [Fallout 2] sessions and quite satisfied
even with half performance of my [i7-8550U] installed in [Lenovo X1 Carbon Gen6] .

Take a note that sticking with this guide will resolve fan noise issue once and for all!

I hope that i don’t need to tell you about widely known windows 10 suckage in terms of power effectiveness
due to loads of unneeded services and stock bloatware.