Avoid third-party driver updaters (Driver Booster, Driver Easy, etc.) for this specific component. Many of these tools install generic serial drivers or, worse, malware disguised as Nuvoton drivers.
Look under for "Nuvoton - Ports" or "Nuvoton - System." 2. Device Manager Manual Update nuvoton communications port driver windows 10 best
Even with the "best" driver, issues can arise. Here is your troubleshooting cheat sheet. Device Manager Manual Update Even with the "best"
: If your Nuvoton chip is integrated into a motherboard (like the Intel DH61CR Nuvoton drivers are commonly used for hardware components
The "best" Nuvoton communications port driver for Windows 10 is typically the one provided by your , as these drivers are tailored to specific motherboard chipsets and BIOS configurations. Nuvoton drivers are commonly used for hardware components like Serial (COM) ports, Super I/O chips, and virtual COM interfaces for development tools. Recommended Versions and Official Sources
| Issue | Possible Cause | |-------|----------------| | in Device Manager | Conflicting IRQ/I/O, disabled in BIOS, or corrupted driver | | Code 10 (device cannot start) | Resource conflict with another legacy device or incorrect BIOS settings | | Code 31 (driver not installed) | Missing .inf file after Windows update | | Random high CPU usage | Misbehaving software polling the COM port (e.g., old monitoring tools) | | Can't change COM port number | Another program has reserved the port, or registry permissions issue | | Driver fails after Windows upgrade | Windows replaced a custom vendor driver with its generic one |
Windows Update pushed a generic serial driver over your custom one.