HP 2230s - Notebook PC Power Manual page 11

Power settings and timeouts can be changed using Power Options in Windows Control Panel.
To initiate Hibernation:
1. Click Start, and then click the arrow next to the Lock button.
2. Click Hibernate.
To exit Hibernation:
Press the power button briefly.
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The power light turns on and your work returns to the screen where you stopped working.
NOTE: If you have set a password to be required when the computer exits Hibernation, you must enter
your Windows password before your work will return to the screen.
Using power-saving states 5