Samsung N140 manual System Setup Keys, Setup, you have to use the keyboard

System Setup Keys

In the Setup, you have to use the keyboard.

F1	Press to view the Setup Help.
Up & Down	Press to move up and down.
Keys
F5/F6	Press to change the item value.
F9	Press to load the default Setup settings.
ESC	Press to return to a higher level menu or to move to the
	Exit menu.
Left & Right	Press to move to another menu.
Keys
Enter	Press to select an item or to enter a sub menu.
F10	Press to save the changes and exit Setup.

The keyboard image and color may differ from the actual keyboard.

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