Optimize windows cpu for low idle load and extend battery life

Out of the box, Windows comes with a number of pre-installed software, settings and services. On my computers, I customize Windows with the goal of wasting as little RAM and CPU cycles as possible. My optimized Windows keeps my CPU in idle mode only 0.5% of the time in fully active state. Thus, it is content with only 1.6 W of power: The laptop stays cool and the fans silent.

Some of the places where I adjust Windows, I show in this article.

Optimize windows cpu for low idle load and extend battery life

Some of the places where I change Windows:

1. Autostart
2. Energy saving plan
3. Msconfig
4. Service
5. O&O Shutup10
6. Transparency effects& Performance settings
To make sure that my changes to Windows are improvements, I keep track of the following metrics:

1. CPU idle power consumption
2. CPU utilization, especially the C0 state
3. RAM load
I measure the power consumption as well as the C0 states at Intel CPUs with Throttlestop and at AMD CPUs with HWinfo64.

I measure the general CPU and RAM utilization with the Windows Task Manager. Accessible with the key combination: [Ctrl]+[Shift]+[Esc].

Autostart

In Autostart programs are included which run automatically after each start of Windows. All programs you don't need after every start should be prevented from starting by clicking on Disable.

Optimize windows cpu for low idle load and extend battery life

Power Saving Plan

Energy saving plans summarize performance related settings for hardware components of the system. Individual components such as the CPU, the SSD, the WLAN adapter or the USB interfaces can be specified here as to how much they prefer performance to low power consumption. In a power plan, one setting each for battery. Mains operation can be stored independently of each other.

Optimize windows cpu for low idle load and extend battery life

Windows does not always show all available settings in the power plan. This can be changed with the help of the registry editor. Before I change anything, I first create a backup, in which I export the settings. To do this, I navigate to the following location: Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Power\PowerSettings Right-click to call up the context menu and select Export. The dialog of the file explorer opens.

Optimize windows cpu for low idle load and extend battery life

The settings stored in the registry file can be restored with "Merge" be written back into the Windows registry.

Optimize windows cpu for low idle load and extend battery life
Optimize windows cpu for low idle load and extend battery life

Before I change settings, I first research how the changes will affect the system. In this case, a starting point would be what the AHCI Link Power Management is. To get a measurable effect not all settings have to be touched. Ideally, the manufacturer of your laptop has already made the optimal settings. In any case I check if u.A. The following settings are configured correctly:

– Harddrive – AHCI Link Power Management HIPM

– Core Parking – Processor duty cycling – System Cooling Policy – Minimum Processor State

Msconfig

Msconfig provides access to the Service. The Microsoft services are an essential part of Windows. We want to change them here first, and therefore hide them by setting the checkmark at the bottom left. The remaining services are third party services. Windows also works without these. We are primarily interested in the services that are currently running, i.E. Actively consuming resources. However, some of them offer useful features. So allows z.B. The Lenovo notebook ITS service the change between several CPU performance profiles. Lenovo Vantage Service access Lenovo's system management software through which to set a charge limit, fast charge, USB port off behavior and more. If you don't know which task a service fulfills, google for it. The services can be turned back on at any time. After making changes, the computer will usually ask you to restart it.

Optimize windows cpu for low idle load and extend battery life

In this case, however, some services are executed despite unchecked, z.B. AMD Crash Defender Service. AMD External Events Utility.

Services

Another way to disable services is to use Windwos' own Services program. This lists all installed services. Here you can also find information about the task, status or start type.

Optimize windows cpu for low idle load and extend battery life

The start type of each service can be customized:

– To prevent a launch at any time, select launch type disabled. – If the service is to be able to start, but only after it is actually needed, select the Manual start type. – Should the service start automatically, but only at a distance of ca. 2 minutes after the automatic services, so is delayed start to choose.

Optimize windows cpu for low idle load and extend battery life

O&O Shutup10

O&O Shutup10 is a free software that configures Windows-wide settings for more privacy with just a few clicks. Functions like sending diagnostic data, analyzing handwriting, displaying suggestions mean additional processes in the background that have to be executed by the CPU. Settings for more privacy can thus save CPU cycles.

Optimize windows cpu for low idle load and extend battery life

Download: O&O ShutUp10

Eye-Candy

Windows now offers various optical effects like shadows, animations, transparencies and other. These are quite pretty to look at. Compared to their plain alternatives, however, they generate an additional computational load. They can be deactivated. I use a reduced version.

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