These appear under Ports (COM & LPT) in Windows .
What (like Code 10) are you seeing in Device Manager? Are you running 32-bit or 64-bit Windows 10? Share public link
You must download and install the official driver from your motherboard manufacturer. If you are running a custom desktop, look up your motherboard's manufacturer and specific model to grab the correct driver. Issue 2: High CPU Usage or Battery Drain
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. nuvoton communications port driver windows 10 best
If you still encounter issues, try these advanced troubleshooting steps.
: If you are using Nuvoton hardware for development, the latest drivers are bundled with NuTool-USB to Serial Port and Nu-Link Drivers .
If you are encountering a "Nuvoton Communications Port" error in Device Manager, or if your system needs to interact with hardware connected to COM/LPT ports, having the correct driver is crucial. Nuvoton technology is often embedded on motherboards (especially those from ASUS, Gigabyte, and MSI) to handle legacy serial communications and Super I/O (SIO) tasks. These appear under Ports (COM & LPT) in Windows
Search for "Nuvoton CIR Driver" alongside your motherboard model. Ensure the driver is specifically designed for Windows 10, as older Windows 7 or 8 drivers often fail to initialize the port properly on newer OS builds. Frequently Asked Questions (FAQ)
Look inside > Driver updates for any listings under "Nuvoton Technology Corp." 3. Identify the Hardware ID for Exact Matching
: If the port doesn't appear, go to Action > Scan for hardware changes in Device Manager. Share public link You must download and install
This guide details the best practices, official sources, and specific steps required to securely install and update the Nuvoton Communications Port driver on Windows 10 (32-bit and 64-bit systems). Hardware IDs Covered by This Driver
: Windows 10 typically provides a generic Microsoft driver (dated 2006) for standard COM ports that works for most basic tasks. If you are using specific Nuvoton development hardware, the manufacturer's dedicated driver is required for features like Virtual COM Port support.
The SIO chip settings are managed by the BIOS. An outdated BIOS can prevent the driver from communicating with the port. Conclusion
To help pinpoint the exact file you need, could you share a bit more information? Please let me know:
In Device Manager, it usually appears under as something like: