Turning Off Vista: What’s Changed

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By default, when you turn off a computer running Windows Vista, the computer enters the sleep state. When entering the sleep state, the operating system:

• Automatically saves all work.
• Turns off the display.
• Puts the computer in sleep mode.

In sleep mode, the computer’s fan stops, the computer’s hard disks stop, and the computer enters a low-power consumption mode in which the state of the computer is maintained in the computer’s memory. The next time you turn on the computer, the computer’s state will be exactly as it was when you turned off the computer.

Note: Because the operating system saves your work, you don’t need to save documents and exit programs before turning off the computer. Because the computer is in a low-power consumption state, the computer uses very little energy. For mobile computers, the sleep state will use very little battery power. If, while in the sleep state, the mobile computer’s battery runs low on power, the state of the computer is saved to the hard disk and then the computer is shut down completely—this state is similar to the hibernate state used in Windows XP.

You can turn off a computer and make it enter the sleep state by following these steps:

1. Click the Start button.
2. Click the Power button.

To wake the computer from the sleep state, you can do either of the following:

• Press the power button on the computer’s case.
• Press a key on the computer’s keyboard.

You can turn off and turn on mobile computers by closing or opening their lid. When you close the lid, the laptop enters the sleep state. When you open the lid, the laptop wakes up from the sleep state.

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