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To successfully bypass Windows' tendency to update your driver automatically, follow these manual installation steps. 1. Download the Driver Package
Right-click the device and select -> Browse my computer for drivers .
Here's a summary review of the Prolific USB to Serial Comm Port driver:
Version 3.2.0.0 (specifically file version 3.2.0.0 dated 10/22/2007 or slightly later variants) is the last "universal" driver release before the blocking mechanism was implemented. It is stable, digitally signed (usually), and works on Windows 7, 8, 10, and 11.
How to Fix the "Code 10" Error: Prolific USB-to-Serial Driver v3.2.0.0
To ensure this specific driver version works, you must manually prevent Windows from automatically updating to a non-functional newer version. Download the Driver:
Version 32.00 continued this crackdown but added improved support for legacy hardware on newer operating systems. For users with genuine older Prolific chips (pre-2015), Version 32.00 was the last stable driver that balanced compatibility with security.