Prolific’s new driver (v11.0 and above) will cause a on purpose. You need an older but still compatible driver.
Adapter will appear under Sound, video and game controllers as FL2000 Graphics Adapter . ub93 driver windows 10
: When working correctly, these drivers provide stable Wi-Fi and Bluetooth connectivity for older hardware, though some users report occasional disconnects requiring a device reset (unplugging and replugging). Recommended Driver Versions Prolific’s new driver (v11
If the automatic method doesn't work, you might need to manually download and install the driver. ub93 driver windows 10