Older GoldCut drivers were signed with SHA-1 certificates. Microsoft deprecated SHA-1 in 2020 and fully enforced SHA-2 signing in (specifically updates KB4598242 and later). If you try to install a driver disc from 2015, Windows 10 will reject it with the error: "Windows requires a digitally signed driver."
The most critical "feature" of the Windows 10 setup for this cutter is that it usually operates as a Virtual Serial Port (USB-to-Serial) . goldcut jk series driver windows 10 2021