I0 do not know why my razer keyboard will not show up in synapse. I recently had a key that didn't work and had to return the keyboard to the factory. I got this keyboard as a Christmas gift and it only worked for 6 days before I had to return it. Since I live in the U.S. It took 2 months for me to get it back. I was happy that the w key worked again, but when I go in Synapse 3 it won't show my device. I am running windows 7 on my P.C. (I know it sucks) and that might be the source, But I don't know for sure. I would be overjoyed If someone could tell me if my P.C. running on windows 7 is the source of the problem and if so what to do so I don't have to go through the send back process again.