Open Device Manager, click "Action" -> "Scan for hardware changes".
Extract the downloaded ZIP folder to an easily accessible location, like your Desktop. Step 2: Access Device Manager
into a USB port. Windows should now automatically associate it with the installed driver Verify in Device Manager: Right-click the button and select Device Manager Expand the Ports (COM & LPT) You should see a new entry, such as "USB to Serial Interface Controller" "Prolific USB-to-Serial Comm Port" Troubleshooting Tips Legacy Hardware:
Select . Uncheck "Show compatible hardware". u232 p9 driver windows 10
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Click if you need to change the COM Port Number to match your software requirements.
" is a generic model name used by multiple brands, you must first identify the chipset inside your adapter to download the right software. Open Device Manager, click "Action" -> "Scan for
If you have already installed a driver but are still receiving a "Device cannot start (Code 10)" error:
To get your serial communication working, follow these installation steps in order. Step 1: Download the Correct Driver
Windows 10 requires strict cryptographic signatures for drivers, causing older, unsigned legacy drivers to fail during installation. How to Install the Correct U232 P9 Driver on Windows 10 Windows should now automatically associate it with the
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To fix this, you must install a compatible, often older version of the driver that explicitly supports the PL-2303 chipset. 1. Download the Correct Driver
Use a terminal program like or Tera Term :
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
Look for a yellow warning triangle under or Other Devices . It will likely be labeled USB-Serial Controller or Prolific USB-to-Serial Comm Port . Step 3: Force the Legacy Driver Installation