Using Hibernate mode
Hibernate mode is available as an advanced power setting. When the computer is in Hibernate mode, it saves to the hard disk drive everything that is in computer memory, turns off the monitor and the hard disk drive, and then turns itself off. When you turn on the computer again, your programs, folders, and documents are restored to the screen.
To put the computer into Hibernate mode manually:
1Click the Windows Start Button 
on the taskbar.
2Click the Arrow button next to the Lock button.
3Click Hibernate, if it is present.
NOTE: If Hibernate is not present, you can set up the computer to go into Hibernate mode automatically; see “Automatic Sleep, Hibernate, or Away mode.”
To wake the computer from Hibernate mode, press the On button on the front of the computer.
If the computer does not work properly when you wake it from Hibernate mode, restart the computer.
1Click the Windows Start Button 
on the taskbar.
2Click the Arrow button next to the Lock button.
3Click Restart.
Automatic Sleep, Hibernate, or Away mode
You can set the computer to go into Sleep, Hibernate, or Away modes automatically when it is idle for a specified number of minutes. To put the computer into a mode automatically, modify the power management settings.
1Click the Windows Start Button 
on the taskbar.
2Click Control Panel.
3Click System and Maintenance.
4Click Power Options.
5Click Change when the computer sleeps.
6For Sleep or Away mode, select an option from the Put the computer to sleep
Or
For Hibernate or Away mode:
a Click Change advanced power settings. b Click the plus sign (+) next to Sleep.
c Click an item and make selections, and then click Apply. d Click OK.
46Getting Started (features vary by model)