In Windows Vista it was possible to select from 3 power plan settings : “Power Saver”, “Balanced”, and “High Performance.” from the system tray. In Windows 7 however it’s only possible to have a maximum of 2 options where the “Balanced” setting is always an visible. To change it to the 3rd one you have to actually click on “More Power Options” and then select the plan without having to install a 3rd party program.
One way to easily select your power plan is by opening Windows Mobility Center
You can quickly open this by holding down Win + X. Locate the battery status block and select your power plan setting.