How To Make Volume Keys Work On Laptop. Right-click it and choose Properties. It is necessary to press and hold the function key fn while pressing one of the f1 through f12 keys to activate the default functions.

Find the key with the Fn Lock icon in your keyboard usually the Esc key. Press the function key you wish to use. It is necessary to press and hold the function key fn while pressing one of the f1 through f12 keys to activate the default functions.
Also my numerical pad doesnt work on the right side.
Hold the FN key and press the ESC key for some time to unlock the FN key. On the Edit menu point to New and then click Key. Although it bugged me I had to be in synapse all the time for it to work. Under the Shortcut section use any of the alphabets or numeric keys to give your Volume keys a shortcut.

