Goldcut Jk Series Driver Windows 10 2021 ((full)) Link

The problem was Windows 10. The October 2021 update (21H2) had just rolled out, and with it, Microsoft had finally nuked the legacy "Unsupported Device" notification workaround. The Goldcut’s ancient serial-to-USB bridge chip, a Prolific PL-2303 HXA, was now officially a ghost. Device Manager showed a yellow exclamation mark: "This device cannot start. (Code 10)."