The LED indicators on a laptop are a series of lights on the front of the laptop case. The colour of these lights indicates different meanings. From left to right, the lights are the power, hard drive, battery and wireless lights. For example, if the battery is charging, that light will be solid. It will flash if it is almost charged, and if there is no light, the computer is off. In Windows 7, you can easily turn these LED lights off by editing the power scheme.
Click "Start" followed by "Control Panel," "System and Maintenance" and "Power Options."
Click "Change Plan Settings." You should see six drop-down menus. There are three under "On Battery" and three under "Plugged In." Click each drop-down menu and select "Never." Click "Apply" followed by "OK" to save the settings.
Close the "Control Panel" by clicking the "X" in the upper right corner.