How to disable the power button

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The following procedure disables the power button and lid close while laptop is connected to the AC power.

1. [Win]+R (or select Start / Run)
2. Enter 'powercfg.cpl' without quotation marks.
3. Click 'Choose what the power buttons do'
4. Select do nothing for 'When I press the power button' under 'Plugged in' column.
5. Do the same for 'When I close the lid'.
6. Optional: you may do the same for 'when I press sleep button'

After the above procedure, an unauthorized person is prevented from shutting down your computer when it is locked. However you can still shutdown your computer with a windows command (i.e. Start > Turn off) after unlocking the computer. The above instruction applies to Windows Vista. For Windows XP, please refer to the Windows XP user guide for detail.


How to prevent computer from automatically falling a sleep

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The following instruction prevents computer from automatically falling a sleep (hibernate or standby) while it is running on AC power.

1. [Win]+R (or select Start / Run)
2. Enter 'powercfg.cpl' without quotation marks.
3. Click 'Choose what the power buttons do'
4. Change when the computer sleeps
5. Select 'Never' for 'Put the computer to sleep' under 'Plugged in' column.

The above instruction applies to Windows Vista. Windows XP has a similar instruction. For Windows XP, please refer to the Windows XP user guide for detail.

Article ID: 1, Last Updated:  Sep 8, 2009