Samsung NP770Z7E-S01UB - Manual (Page 57)

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Chapter 3.
Using the computer
Other Function Keys (Optional)
Eject the CD (DVD).
+ Delete
Performs the right-click mouse function (touchpad).
+
If you press the Fn Lock key, you can use the hot key functions
without pressing the Fn key.
or
If you press the Num Lock key, you can use the numeric keys.
Num
Lock
If the hot keys do not work properly, you have to install the
Settings.
Keyboard