No Windows 7, você dá por padrão (verificado no arquivo de Ajuda) o modo Balanceado e Economia de Energia, para obter o Alto desempenho, você precisa configurá-lo manualmente para mostrá-lo.
You can create your own plan and customize it to suit your needs. For example, if you frequently use a laptop to give presentations, you can create a plan that keeps the display turned on during the presentations and ensures that your computer stays awake.
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If you created power plans that you no longer use or need, delete them. You can't delete Balanced, Power saver, High performance, or the plan that you're currently using (the active plan).
Então, no final, as escolhas são bastante limitadas se você estiver com as configurações do Windows e não hackear o registro