To prevent conflicts, it is often best to uninstall the current (failing) driver: Open . Expand Ports (COM & LPT) .
To lock your working driver choice in place, use one of the following methods. Method A: Use the "Roll Back Driver" Feature
Driver version has earned its reputation as a powerful solution to this problem. For many users, it strikes a critical balance: it is a newer driver that offers broad compatibility with modern Windows operating systems, while still being an "older" enough version that it does not aggressively block older, legitimate PL2303 chips like the HXA and X variants. Reports from various online sources confirm that while versions beyond 3.4 or 3.6 tend to trigger the dreaded error code 10, version 3.3.3.114 functions effectively, making it a key tool for reviving older hardware. prolific usbtoserial comm port version 333114 driver
Microsoft offers a legacy utility called "Show or hide updates" ( wushowhide.diagcab ). Run this tool while your internet is connected. Search for updates, select the newer Prolific driver update from the list, and check . This tells Windows to ignore that specific update moving forward. Method B: Configure Group Policy (Windows Pro/Enterprise) Press Win + R , type gpedit.msc , and hit Enter.
To extend the life of your adapter and avoid driver hell, follow these tips: To prevent conflicts, it is often best to
Look for PL2303_Prolific_DriverInstaller_v333114.zip or .exe . Step-by-Step Installation Guide (Windows 10/11)
However, driver management—particularly —has become a critical topic for users due to compatibility, stability, and counterfeit chip issues. Method A: Use the "Roll Back Driver" Feature
: The first and most recommended step is to visit the official Prolific Technology website. However, note that the company's website URL might have changed over time. A quick web search for "Prolific Technology official website" can help you find the correct link.
The Prolific USB-to-Serial Comm Port Version 333114 Driver is commonly used in a variety of applications, including:
Navigate to: Computer Configuration > Administrative Templates > System > Device Installation > Device Installation Restrictions .
If you have a Prolific adapter, you might be wondering why you cannot just use the latest driver from the Prolific website. 1. The "Code 10" / "Not Prolific" Problem