Samsung NP600B4C-A01US - Manual (Page 49)

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Chapter 2.
Using the computer
Pointing Stick
(Optional)
Auto-locking when connecting USB mouse
► When using the Synaptics driver
Click Start > Control Panel > Hardware and Sound > Mouse
> Device Settings, and check the Disable internal pointing
device when external USB pointing device is attached in
option. This will turn the touchpad and the pointing stick off
when a USB mouse is connected.
In case of some touch-screen model, checking option locks
the touchpad and the pointing stick even though you did not
connect a USB mouse.
This auto-locking function is not provided for some models.