Your chip is or an old, unsupported version .

Download the official Microsoft (wushowhide.diagcab). Run the utility and select Hide updates .

Buy a new adapter based on the FTDI FT232 chip. FTDI maintains perfect Windows 10 compatibility and even provides an official driver tool.

You can find recent Windows 10 compatible drivers directly on the MCT Download Page Alternative Package: Some users have success with the USB-RS232 Windows 10 & 11 Driver provided by third-party industrial suppliers. mct.com.tw 2. Manual Installation Steps

Official Driver Sources (use chipset-appropriate driver)

If the driver installation consistently fails, the converter may be a counterfeit Prolific chip, which modern Windows 10 drivers deliberately block.

Troubleshooting

This comprehensive guide provides step-by-step instructions to install the correct driver, resolve device manager errors, and ensure stable data communication. Understanding the U232 P9 Hardware Architecture

To get your adapter running, you typically need to bypass the Windows Update version and manually install an older, compatible driver.

To help narrow down any remaining connection issues, let me know: What is showing in Device Manager?

Some U232 P9 units use a WinChipHead chip. Try this if the Prolific driver still gives Code 10.

This comprehensive guide will help you find, install, and troubleshoot the U232 P9 driver on Windows 10. Understanding the U232 P9 Hardware

If you spend more than 30 minutes troubleshooting, consider this: genuine or Silicon Labs CP2102 adapters cost $10–15 and work natively on Windows 10 without driver hacks. The U232 P9 is legacy hardware from 2005–2010. While this guide will get it working, a modern adapter saves future headaches.

This article provides a step-by-step guide to finding, installing, and troubleshooting the U232-P9 driver on Windows 10 (32-bit and 64-bit). Why Your U232-P9 Isn't Working on Windows 10

By following this guide, you should be able to get your U232 P9 adapter operating properly, allowing you to bridge modern computer systems with essential legacy hardware.