Power Efficiency Report

This section will be more usefull for the Laptop users. You  want to get more battery life out of it? Windows 7 includes a hidden built-in tool that will examine your laptop's energy use and make recommendations on how to improve it. To use it: Just make the following setups one by one as given below

1. Run a command prompt as an administrator.
To do this, type cmd in the search box, and when the cmd icon appears, right-click it and choose "Run as administrator."

2. At the command line, type in the following:
powercfg -energy -output \Folder\Energy_Report.html

where \Folder represents the folder where you want the report to be placed.

3. For about a minute, Windows 7 will examine the behavior of your laptop. It will then analyze it and create a report in HTML format in the folder you specified. Double-click the file, and you'll get a report -- follow its recommendations for ways to improve power performance.