This policy setting specifies the action that Windows takes when a user presses the sleep button. Possible actions include: ...

This policy setting specifies the action that Windows takes when a user presses the sleep button.

Possible actions include:
-Take no action
-Sleep
-Hibernate
-Shut down

If you enable this policy setting, you must select the desired action.

If you disable this policy setting or do not configure it, users can see and change this setting.