Select the Start menu Power button action (on battery)

This policy setting specifies the action that Windows takes when a user presses the Start menu Power button.If you enable this policy setting select one of the following actions:-Sleep-Hibernate-Shut downIf you disable this policy or do not configure this policy setting users control this setting.

Policy path: 

System\Power Management\Button Settings

Scope: 

Machine

Supported on: 

Windows Vista only

Registry settings: 

HKLM\Software\Policies\Microsoft\Power\PowerSettings\A7066653-8D6C-40A8-910E-A1F54B84C7E5!DCSettingIndex

Filename: 

Power.admx

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