Resource conflict with another serial device or an outdated BIOS.
Power management is cutting power to the Super I/O chip.
: If the port doesn't appear, go to Action > Scan for hardware changes in Device Manager.
file, use the "Browse my computer for drivers" option in Device Manager to point directly to the folder containing the extracted Nuvoton files. Common Issues & Troubleshooting nuvoton communications port driver windows 10 best
Right-click the device -> Properties -> Details -> Hardware Ids. Look for *PNP0500 or *PNP0501 .
For users who need to download the driver manually or want the absolute latest version available, the Microsoft Update Catalog is an excellent resource. Microsoft's official driver catalog hosts a wide range of WHQL-certified drivers for various hardware.
: Download via Nuvoton's Technical Support or their GitHub repository (OpenNuvoton) for open-source tools. Resource conflict with another serial device or an
Alex discovered that for Windows 10, the (or similar series) driver provided by HP (often listed as the "Nuvoton LPC Customer Infrared Device Driver" or "Communication Port Driver") was the gold standard for compatibility.
Alex didn't settle for the "Update Driver" button—Windows often failed to find these legacy gems. He followed a professional checklist to find the ultimate match:
This is the classic Device Manager error. It means Windows 10 knows the Nuvoton chip is there, but doesn't have the software to talk to it. file, use the "Browse my computer for drivers"
Download the Nuvoton Communications Port driver zipped folder.
The best Nuvoton Communications Port driver for Windows 10 is the one provided directly by your motherboard manufacturer or the Microsoft Update Catalog. By following the steps above, you can resolve communication port errors and ensure your legacy hardware works seamlessly in a modern 64-bit environment.