Win7 system to turn off the power prompt tone method

  
1. First click the "Control Panel" option in the Start menu;

2, in the open control panel, select the click "hardware and sound" items;

3, then click on the sound under the "Change system sound" option

4, in the pop-up sound interface, switch to the "sounds" tab, then the sound Set the plan to <; Silent& quoquo;, then click the OK button to exit.

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