Operating System (OS)
To change the screen saver you can go from

Control panel display
Both of Above
None of These
Right click in desktop and properties

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Operating System (OS)
What is the meaning of "Hibernate" in Windows XP/Windows 7?

Restart the Computer in hibernate mode
Shutdown the Computer without closing the running applications
Restart the Computer in safe mode
Shutdown the Computer terminating all the running applications

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