Cause: The driver is correct, but the access method changed in Windows 10 (Ring-0 vs. Ring-3).
Solution:
Let’s install the optimal driver without errors.
Summary
Why precision matters
What to install (recommendations)
Step-by-step: install or repair the correct driver on Windows 10
Troubleshooting (concise)
Security and stability tips
When to contact support
Practical example (typical successful flow)
Conclusion
Date: March 23, 2026
The Ultimate Guide to the Nuvoton Communications Port Driver for Windows 10 nuvoton communications port driver windows 10 best
If you’ve ever opened your Windows Device Manager only to see a yellow exclamation mark next to "Nuvoton Communications Port" (often listed as COM1 or COM3), you aren't alone. This driver is essential for enabling serial communication between your PC’s motherboard and external hardware—like industrial tools, microcontrollers, or legacy peripherals.
Whether you're setting up a new workstation or fixing a broken connection, here is how to find, install, and optimize the Nuvoton Communications Port driver on Windows 10. What is the Nuvoton Communications Port Driver?
The Nuvoton Communications Port driver is a software component that allows Windows to recognize and talk to hardware based on Nuvoton chipsets. It is commonly found on Intel motherboards (like the DH61CR) and specialized industrial systems. It handles:
Data Passthrough: Monitoring I2C, SPI, and CAN data via tools like NuTool.
Virtual COM Ports: Bridging USB and Serial signals for developers.
Legacy Hardware Support: Managing older RS-232 serial connections. Best Way to Get the Driver (Version 1.2.2020.1225)
The most recent and stable version for Windows 10 is typically 1.2.2020.1225 (released late 2020). Nuvoton Communications Port (COM1) Driver for INTEL_
The best Nuvoton Communications Port driver for Windows 10 depends on your specific hardware, but for modern Nuvoton microcontrollers (like the NuMicro series), the official Nuvoton Virtual COM Port (VCP) Driver is the standard. For legacy physical ports, version 1.2.2020.1225 (released December 25, 2020) is the most recent general update. Driver Options & Installation Guide
Nuvoton Virtual COM Port (VCP): Primarily used for development boards like the NuMaker-IMU-M487. It allows the PC to communicate with microcontrollers via USB as if they were standard serial ports.
Legacy Communications Port: If you are supporting older hardware integrated into systems like MEDIONPC or LANGCHAO, specific version strings such as nuvserial.inf are common in driver databases.
Automatic Updates: The most reliable way to get the correct driver is through the Microsoft Update Catalog, which lists certified Nuvoton firmware and driver updates as recent as late 2025. How to Install/Update
Device Manager: Right-click the Start button and select Device Manager.
Locate Port: Expand the Ports (COM & LPT) section. Look for "Nuvoton Communications Port" or "Nuvoton Virtual COM Port". Cause: The driver is correct, but the access
Update Driver: Right-click the entry and select Update driver. Choose Search automatically for drivers to let Windows find the best version from Microsoft's servers.
Hardware Activation: For physical development tools (like Nu-Link-Me), ensure physical switches on the board (e.g., VCOM Switch No. 1 and 2) are set to ON for the port to be recognized by Windows. Troubleshooting
Missing Port: If the port doesn't appear, go to Action > Scan for hardware changes in Device Manager.
Manual Selection: If automatic updates fail, you can manually add it by selecting Action > Add legacy hardware and choosing Ports (COM & LPT) from the list.
Do you need a direct download link for a specific Nuvoton chip model, such as the NuMicro or Nu-Link series? Nuvoton Communications Port (COM2) Driver for MEDIONPC
Download the Nuvoton Communications Port (COM2) driver for Windows 7, 8, 8.1, and 10 (64-bit) for MEDIONPC - MS-7048 - DriverIdentifier Nuvoton Communications Port port (COM/LPT/Serial) drivers
Solution:
After reading this guide, you should understand that there is no one-size-fits-all "best" driver. The optimal driver is the one provided by your motherboard manufacturer, WHQL-signed for Windows 10, and matched to your specific Nuvoton chip model.
Start by visiting your motherboard’s support page. If that fails, fall back to Nuvoton’s official reference drivers. Avoid third-party driver updaters at all costs. With the correct driver installed, your Nuvoton Communications Port will function reliably, whether you’re programming a microcontroller, controlling legacy industrial equipment, or simply using hardware monitoring tools.
Have you struggled with this driver before? Leave a comment below (on the original blog post) with your motherboard model and Windows 10 version—we’ll help you find the best solution.
Meta Description: Looking for the best Nuvoton Communications Port driver for Windows 10? This guide covers official downloads, troubleshooting, and installation steps for optimal COM port performance.
Tags: Nuvoton, Communications Port, Windows 10 driver, COM port driver, Super I/O driver, NCT6791D, motherboard driver, ASUS Nuvoton driver.
Word Count: ~1,450
The Nuvoton Communications Port driver is a critical system-level software component that allows Windows 10 to communicate with serial interfaces on your motherboard or connected peripherals. This driver is essential for maintaining a stable connection with devices like GPS modules, blood pressure monitors, and embedded development platforms. Identifying the Best Driver for Windows 10
For Windows 10, the "best" driver is typically the one provided by your motherboard manufacturer or the official Nuvoton Technology Corporation.
Standard Driver Version: Version 1.2.2020.1225 is widely recognized as a compatible version for Windows 10 and 11, often packaged as nuvserial.inf.
Hardware IDs: This driver typically supports hardware IDs like *PNP0500 and *PNP0501.
Virtual COM Ports: If you are using Nuvoton development tools like the Nu-Link2-Pro, you may need specific virtual COM port drivers (e.g., Nu-Link Virtual Com Port) provided in the Nuvoton NuTool toolkit. How to Install the Nuvoton Communications Port Driver
You can install or update the driver through several reliable methods: 1. Automatic Update via Device Manager
The easiest way to ensure you have the best driver is through Windows' built-in tools: Press Win + X and select Device Manager. Expand the Ports (COM & LPT) section.
Right-click Communications Port (COM1) (or your specific port) and select Update Driver. Choose Search automatically for drivers. 2. Manual Installation (The "Best" for Specific Hardware)
If Windows cannot find the driver, you should download it from your computer manufacturer's support site (e.g., Intel or HP). Download and extract the driver files.
In Device Manager, right-click the port and select Update Driver > Browse my computer for drivers.
Select the folder where you extracted the files and follow the prompts. 3. Legacy Hardware Method
If the port doesn't appear at all, you may need to add it manually: In Device Manager, go to Action > Add legacy hardware.
Select Install the hardware that I manually select from a list. Why precision matters
Choose Ports (COM & LPT) > Standard port types > Communications Port. Common Issues and Fixes Nuvoton Communications Port (COM1) Driver for INTEL_
Windows 10 often pulls a basic inbox driver via Windows Update. To force this: