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To enable or disable wireless functions, you must use the Hot Key combination of "Fn" + "F8". This means to press and hold the "Fn" key (near the windows key), and the press the "F8". This is a toggling function. Each time you press the key, it will turn on or turn off the function. Look for the Wireless Light to ensure that the wireless activated.
for scroll Lock on your laptop try the key combination hold the Fn key and press the F12 to activate scroll lock, the same can be used to undo the Scroll Lock too.
as you will see that you can also activate most other functions with the Fn Key combination when used with the keys which have the functions printed on them in the same color as the Fn Key
for example Fn+F3 keys will toggle WiFi on or off, Fn+F4 will put the computer to Sleep, Fn+Up Arrow to increase Volume and Fn+Down Arrow to Decrease Volume etc.