You need to install the driver so that the PC can control the receiver frequency.
The firmware in the SDR-4+ receiver is the same as that used in the SoftRock SDR transceivers and receivers written by PE0FKO.
He has a web page going into great detail about the firmware. About halfway down the page is a section "Install the PC software automatic". Follow that and it should install it on your Windows 10 PC.
