I was worried because I saw some state they installed it then it did not work. I got it then installed it then hooked up a portable cd rom because the computer it was used on did not have a working one. I was confused as it did not work to get a wi-fi signal despite doing its few steps it gave. I then left the room and when I came back and turned off the PC. After ensuring the card and connections were installed right, I was about to pack it up and send it back. I took a nap and a few hours later I turned it back on and Voila, it worked! I then asked some techs and they told me that NO MATTER WHAT AN INSTALL GUIDE SAYS, YOU NEED TO RESTART A COMPUTER FOR ALL THE CHANGES TO TAKE PLACE! What? Am I the only person that did not know that? Anyways, I hope this insight helps you. Right now the computer is running at ridiculously fast speeds, and could not be happier. The computer techs I spoke to said this is a very good wifi and bluetooth card, you just have to install card and drivers and restart to make it work.