Windows Vista: Enabling/Disabling the Hibernation Feature

To turn on or off the hibernation feature in Windows Vista, you have to do it from the command line. Follow the instructions below:

• Open the Start Menu, in the Search field type cmd then press Ctrl-Shift-Enter (this opens the administrative level command prompt).
• In the command prompt type powercfg /hibernate on then press Enter.
• Reboot your computer and the hibernate feature will be enabled.

Note: To turn off the hibernation feature follow the instructions above, although type powercfg /hibernate off (instead of on).