I would pack it all back up and go the distance I have to go in order to return it.  I've had to go through four keyboards and still the PCU errors it out because the system doesn't recognize the keyboard. I bought this to go back to school. the way it goes in and out of recognizing the keyboard while I type makes sure I have lots of typos and misspelled words. nor is there up to date hardware in the system to allow me to update to the next windows, so I'm stuck with this version, because I'm not putting more money into it.  It also makes it longer in doing my assignments, because I have to keep unplugging, plugging, restarting.. going through all the steps so the computer recognizes it, and then waiting for the one moment the PC decides to recognize it...... only to have to do the same thing again because a little afterwards, it goes back to not recognizing.  Remember; I have gone through four keyboards. Still not behaving. I'm going through physical therapy because of surgery and am not able to deal with any kind of weight, so... it's just been sitting on the desk, mocking me with not working the way it's supposed to.