How to disable the power button?

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.