1. Click Start, click Run, type powercfg.cpl, and then click OK.
2. In the Power Options Properties dialog box, verify that a Hibernate tab exists. If the tab exists, click the Hibernate tab, click to select the Enable hibernation check box, and then click Apply.
3. In the Power buttons section, verify that the Standby option and the Hibernate option appear in the drop-down list on the Advanced tab.
Note If a Hibernate tab exists and you click to clear the Enable hibernation check box on the Hibernate tab, the Hibernate option will not appear in the down-down list on the Advanced tab.
If both the Standby option and the Hibernate option do not appear, either the computer does not support these features or the power management features are disabled in the BIOS. Contact the system manufacturer for information about the BIOS settings.