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For official, modern hardware, you can download the latest drivers (v4.0+) directly from the Prolific Support Website using the guest credentials for both username and password. Microsoft Community Hub you're seeing in the Device Manager? Prolific USB-to-Serial Comm Port (COM8) Driver for Zepto
Click . Select the version labeled 3.2.0.0 and click Next. Troubleshooting Common Errors Error Code 10 (Device Cannot Start)
To ensure this specific driver version works, you must manually prevent Windows from automatically updating to a non-functional newer version. Download the Driver:
Often works on legacy hardware that newer drivers reject.
(often displayed as 3.2.0.0 or 32.00 in device manager) was released by Prolific around 2021 . This driver package is notable because it officially ended support for many counterfeit and older genuine PL2303 chips. prolific usb to serial comm port version 32 00 download 2021
Windows will often try to override this setup with a newer driver immediately. You must manually lock it to version 3.2.0.0:
Open the Device Manager. Under the "Ports (COM & LPT)" section, right-click on the "Prolific USB-to-Serial Comm Port" (which will have a yellow exclamation mark) and select . In the confirmation dialog, make sure to check the box labeled "Delete the driver software for this device" before clicking Uninstall. After uninstalling, unplug your USB-to-Serial adapter and restart your computer.
What (e.g., Windows 10 64-bit, Windows 11) are you running?
The Prolific USB to Serial Comm Port version 32.00 is a highly sought-after driver that offers high-speed data transfer rates, improved compatibility, and easy installation. By following the steps outlined in this article, users can easily download and install the driver in 2021. With its numerous benefits, including increased productivity, reduced costs, and improved reliability, the Prolific USB to Serial Comm Port version 32.00 is an ideal solution for devices that require serial communication. For official, modern hardware, you can download the
Downgrading the driver to Version 3.2.0.0 (dated roughly 2007-2009) is the industry-standard fix. This older driver does not contain the anti-counterfeit detection logic and works perfectly with both genuine and generic cables.
: Around 2012, Prolific released newer drivers designed to detect non-genuine or cloned PL2303 chips manufactured by third parties. If the official newer driver detects a non-authentic or legacy chip (such as the widespread PL-2303HXD or PL-2303TA), it refuses to initiate communication and throws a Code 10 error .
Open Device Manager, right-click the Prolific device, select Properties , go to the Driver tab, and click Roll Back Driver . COM Port Number Conflict
Select "Prolific" from the manufacturer list, then select (dated 2008 or 2009). Click Next and Finish. Troubleshooting "Code 10" and Driver Reversion Select the version labeled 3
: Plug in the USB adapter. Windows may automatically try to update it to a newer, non-working version. Roll Back/Select Manually :
installer. Many users find it on community support sites like Run the Installer : Double-click the downloaded
. Search for "Prolific Serial" and look for older published dates (e.g., around 2008-2010). 2. Installation Steps
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