I also tried to operate turntable and adapter to my laptop with Windows 8.1 and USB3.0 ports, but that does not work. Here I have described in a review extremely loud hum that drowns out the actual audio signal. For recording I use here the same program as on the big computer. I would imagine that there may be an incompatibility with USB3.0. The super results on another computer suggest this assumption.
Since this adapter is needed in such a simple way, the record of my extensive record collection, there is still a perfect score.