Fix Prolific USB to Serial Driver not Working on Windows 11

Some users with Windows 11 came across the issue that the USB connection failure to Win 11. The error message goes like “Please install corresponding PL2303 driver to support Windows 11 and further OS“. That is the pl2303 driver error on windows 11. In this article we will show you why the pl2303 driver error occurs and the solutions to fix prolific USB to Serial Driver not working on Windows 11.

Reasons for Prolific USB to Serial Driver not Working on Windows 11

The general reasons are often: the USB driver is outdated or missing, or even the USB driver has been corrupted.

Usually we’re not clear about the exact reasons caused to the error. Therefore, we should go the following steps to find our the reason and fix it in the right way.

How to Fix Prolific USB to Serial Driver not Working on Windows 11

Method 1: Update Drivers with Third-party Driver Updater – Easiest Method

No matter which kind of driver errors you come across, usually we can download a third-party driver updater such as Driver Easy, IObit Driver Booster or the AVG Driver Updater to detect and update all the missing, outdated drivers and fix the corrupted drivers. Then your issues will be get solved.

Method 2: Update or Install Drivers Manually

You can download the latest drivers from its official website to download and install the USB drivers manually.

Method 3: Rollback Prolific USB to Serial driver to Older Version

Sometimes, the third-party tool or install drivers manually will make things worse. Therefore, we’d like to recommend you to fix the PL2303 issues (Prolific USB to Serial Drivers) Win 11 with the system built-in settings to roll back the driver.

Step 1: Right-click on Start button and click Device Manager；

Step 2: Double-click Ports(COM & LPT), and right-click on your Prolific USB to Serial driver to select Update driver.

Sometimes, the ports doesn’t show in the device manager.

Step 3: Click Browse my computer for driver software;

Step 4: Select Let me pick from a list of available drivers on my computer;

Step 5: Select an older version on the Model list and Next.

Then the drivers will be installed atomically on your Windows 11 and you can restart your computer to check whether you can connect the USB to your Windows 11 device successfully.