Hibernate Windows

I have lost the option for hibernation onmy laptop in the shutdownmenu and in the power options for closing the lid.Howdo I get it back? I am runningWindows XP.

Hibernation has to be enabled before it appears as an option in these menus. Click on the Start Button and then on Control Panel. Double-click on the Power Options icon or click on Performance and Maintenance and then on Power Options. Click on the Hibernate tab and select the option Enable hibernation. Click on OK