Windows7 hidden function power efficiency analysis, out of power consumption black household

This power efficiency analysis tool comes with Windows 7, which is actually a powercfg.exe applet. Once turned on, it continuously monitors the computer for 60 seconds and then generates a power efficiency analysis report. Power settings, hardware and operational operations are all monitored, and the report will give an error message, alert and inform the computer about the power efficiency of the hardware, and give advice on how to use it to improve power efficiency.
The following Xiaoyi will explain how to use this feature.
To open powercfg.exe, we need to open the command window as an administrator. Open “Start - All Programs - Attachments'; Right click on “command prompt"> Select “Run as administrator”.

If you jump out of the User Account Control window, press “Yes  Continue.

Type powercfg /energy in the command window and press Enter.

Start monitoring system:

60 seconds later:

After the report is generated, it is stored in c:windowssystem32. (If you can't open the reading directly, you can copy and paste it to the desktop and then open it.)

The power efficiency analysis report example is as follows:

After giving the error message and suggestion, you can take it The corresponding measures are repaired or optimized to use the power supply more efficiently.
(In addition to manual operations, if you are familiar with commands, you can also use the powercfg command directly.