Windows 64-bit versions strictly require drivers to be digitally signed. Official versions of WinUSB and libusbK are signed, but manually created .inf files (like those from the old inf-wizard ) may fail unless you disable signature enforcement.
A specialized driver that supports advanced features like isochronous transfers (streaming data) and can be used if WinUSB has limitations. libusb-win32 (Legacy): libusb driver 64 bit