I have installed all the drivers and Followed instructions I found online, as none are provided with the product, but no luck. I left it a while thinking I would try later and went to open Outlook, but I got a crash warning and the dump file pointed to the driver of this device. I then went to explorer, got the same issue. I then could not open my Start Menu Which I found to be too much of a coincidence. So I uninstalled the driver and hey presto, everything worked fine (Windows 8.1). So want to send back.