How to detect win7 system power usage

Friends who use notebooks often worry about the battery usage rate, in fact, in win7 with a power manager (as shown), you can manage the computer power plan, of course, not only the power supply Management can involve the efficiency of the power supply, and also includes various settings for your computer, such as how long it takes to go to sleep without operating the computer, and the resolution of the screen. These subtle settings will affect the efficiency of the power supply. Let's take a look at the specifics, let the computer check how efficient it is, and how we should improve the computer to improve power efficiency.




If you are using a computer with an administrator account, you can open the command window directly by clicking [Run] in the Start menu, if there is no in your Start menu. For this option, you can press the shortcut key winr

In the open run dialog box, type cmd, then press the Enter key to open the command window

If you are not using the administrator As the running computer, you can open it in the Start menu: All Programs - Accessories, find the command prompt, right click, select [Run as administrator]

In the open command window, Enter the command: powercfg /energy, then press Enter.

You will see this prompt, don't worry, wait a minute

A minute later, we will see 9 tips. Error, 18 warnings, detailed information did not appear, but saved in the file: C:Users123energy-report.html, which is the address shown in the figure

Open a folder, enter this Address, then press the Enter key, which opens The web page file

You will see the computer open the browser and see the power efficiency report page in the browser, thus completing a diagnosis of power management, you can follow the tips below to specific Set up the computer to achieve optimal power management.