问：Windows Vista开始菜单中的电源按钮，点击之后是睡眠，而不是关机，怎么改啊？

答：Windows Vista的默认电源按钮为“睡眠”功能，如果希望直接点击 
电源按钮关机的话，请按照一下方法设置：

1、在控制面版中打开“电源选项”

2、选择“更改计划设置”

3、在打开的窗口中选择，“更改高级电源设置” 

4、找到“电源按钮和盖子”，选择其中的“开始”菜单电源按钮，在“设置”中选择“关机”，确定，即可完成设置。

英文原文如下：

Changing the Action for the Start Menu Power Button
At the bottom right of the Start Menu are three icons.

The left one (circle with a vertical line) is the Power Button

To change the action (Sleep, Hibernate or Power Off)

Go to the Control Panel
Select System Maintenance and then Power Options if it is the Default View or
Select Power Options if it is the Classic View
Under your current plan, click on Change plans settings
Click on Change advanced power settings
Click on the + by Power buttons and lid
Click on the + by Start menu power button
For the Setting, select Sleep, Hibernate or Shutdown
Click on Apply and OK
Now when you hover over icon, you can see the action it will take.