how to enable hibernate option in shutdown menu in windows xp / windows 7
The mentioned process disables the hybrid sleep option.
follow the steps below :)
In the Control Panel Window, Click the Power Options icon
In the 'Change Settings For Plan' window, Click the 'Change advanced power settings'
Click the Plus (+) sign next to the Sleep option
click 'Allow hybrid sleep'. set it to 'Off'
Click the OK button
now you should see the hibernate option.