3 simple tips if your PL2303 driver won't run in Windows 11

The PL2303 cable is one of the most popular cables for connecting serial devices to USB ports. But like anything else, it also requires feature drivers to work effectively. However, some users have reported that the PL2303 driver does not work in Windows 11.

Problems with the driver may be due to four reasons, corrupted state, outdated, incompatible or there are bugs in it. And, these problems can be easily eliminated with two quick and easy fixes.

Although if there are issues that trigger these issues, you will have to take a different approach, as mentioned in the last method.

Some users also reported seeing this was not the Prolific PL2303. Please contact your supplier, but we've included that in this tutorial as well.

So, let’s see what you can do if the PL2303 driver is not working in Windows 11.

What should I do if the PL2303 driver does not run in Windows 11?

1. Install a compatible driver version

1. Open any fast and reliable browser, visit the Prolific official website, and click the PL2303_Prolific_DriverInstaller_v4.0.1 link.
2. After downloading the ZIP (.zip format) file, go to the folder where it is stored, right-click on it and select Extract All.
3. Now, click Browse.
4. Choose a location for the extracted files and click at the bottom to select a folder.
5. Click Extract at the bottom and wait for the process to complete.
6. Double-click the installer to launch it.
7. If you see the following screen, click More Information.
8. Next, click Run anyway.
9. After the UAC (User Account Control) prompt pops up, click Yes.
10. Now, follow the on-screen instructions to complete the installation process.

If you realize, we did not install the latest version of PL2303 driver but installed an older version as it is compatible with Windows 11 and works fine without throwing any errors .

You can try to install the latest version but if that doesn’t work, then go ahead and install this version as it will work for most of the users who are facing the issue of PL2303 driver not working properly in Windows 11.

Or you can simply use a reliable third-party application. We recommend using DriverFix, a specialized tool that automatically finds and installs the best available driver for every device connected to your system.

⇒Get DriverFix

2. Rollback driver update

1. Press Windows S to launch the search menu and enter Device Manager in the text field at the top , then click the relevant search results that appear.
2. Double-click the Ports (COM and LPT) entry here.
3. Now, right-click on the PL2303 USB-to-Serial device and select Properties from the context menu.
4. Navigate to the Drivers tab and click the Rollback Driver button.
5. Select a reason to roll back the update and click Yes.

If the PL2303 driver stops working in Windows 11 after updating, either manually or automatically via Windows Update, reinstalling the previous version will help resolve the issue .

3. Perform a System Restore

If the PL2303 driver fails to run in Windows 11 or stops running within a short period of time after following the steps here, it may be triggered by something. The problem. To fix this problem, all you have to do is perform a system restore.

This is a quick way to return your system to a healthy state, otherwise you will spend a lot of time identifying and eliminating the root cause.

When you reach this section, one of the methods listed here must have fixed the Pl2303 driver not working properly in Windows 11 issue.

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