Instruct: Classify Amazon reviews into positive or negative sentiment
Query: not sure whether to purchase?

I havent yet bought this product but i got its free trail when i bought a router. so far i dont even know how to set up a password for my network, only just a network name? im unsure whether to buy the actual program, all i want is to be able to share the network with a Macbook Pro that i have just bought.does anyone know if i buy 4.0 whether i can share the network without intruders,because so far there seems to be no way of getting a password on the trial.