PL11 Driver for Windows 2303: How to Download and Install

Prolific's PL2303 cable allows you to connect a serial device to a USB port on your computer. However, some users reported encountering problems in Windows 2303 without the PL11 driver.

So, what is the PL2303 USB to Serial driver? Like any other driver, its job is to establish a connection between the operating system and the device, in this case the PL2303 adapter. Without the driver, the device will not be recognized and therefore will not work properly.

In most cases, Windows 11 should automatically install the cable driver, but sometimes you must manually proceed to download the PL2303 driver Windows 11 64-bit.

What is the PL2303 USB to Serial Driver?

The PL-232 USB to Serial Converter makes it easy to connect RS-2303 serial devices to a Windows host with a USB connection.

It provides a bridged connection by having a standard DB 9-pin male serial port connector on one end of the cable and a standard Type-A USB plug connector on the other end of the cable.

The following are some possible errors related to the Prolific PL2303 USB to Serial Adapter:

• Prolific PL2303 This device cannot boot (Code 10)
• The prolific PL2303 driver was not installed for this device
• The prolific PL2303 device driver was not successfully installed
• PL2303TA does not support Windows 11 or higher, please contact your supplier
• Please install the corresponding PL2303 driver to support Windows 11
• This is not the prolific PC2303 error (Windows 11)
• PL2303 Driver not working (Windows 11)
• PL2303 Phased out

This is what happens when a driver is corrupted or outdated. In this case, the relevant driver may not be installed unless you check Device Manager. Also, read this article to know how to fix outdated driver errors in Windows 11.

Now that you understand how the entire concept of Windows automatically detecting and installing relevant drivers works, let us walk you through the steps to install PL11 drivers in Windows 2303.

Does Windows 11 support RS232?

Yes, Windows 11 supports and recommends RS232. Follow this download, installation and troubleshooting guide to learn how to install the PL11 USB to Serial driver in Windows 2303 and resolve issues.

In this article

How to download PL11 driver for Windows 2303?

1. Update via Windows

NOTE Please connect the Prolific PL2303 adapter to your PC before proceeding.

1. Press to open Settings, go to Windows Update from the navigation pane, and click Advanced options ". WindowsI
2. Click Optional Updates.
3. Expand DriverUpdate, check the Prolific PL2303 driver checkbox, and click Download and Install## at the bottom #.
Wait for the process to complete and then restart your computer for the changes to take effect.

Windows recognizes the connected device and in most cases automatically downloads the relevant driver. However, if that doesn't happen, you should be able to find and download the USB to Serial driver for Windows 11 under Optional Updates.

If you are looking for PL11TA driver for Windows 2303, then this solution may help.

2. Manually

1. Open any web browser from the website, go to the Prolific official website and click on the download link to PL23XX_Prolific_DriverInstaller_v408.zip.
   
2. Once the download is complete, right-click on the file and select Extract All from the context menu. This is because the downloaded file is in ZIP format.
3. Click Browse, select the path to extract the file, and then click Extract at the bottom.
4. After the extraction process is complete, click on the installation file.
5. Click Yes on the UAC (User Account Control) prompt that pops up.
6. Now, click Next in the installer window.
7. After the installation is complete, click "Complete" to close the installation program.

After installing the Prolific PL11 driver in Windows 2303, restart your computer for the changes to take effect. Once completed, you can use the PL2303 USB to serial cable.

If the above method sounds too tricky, you can always use a reliable third-party application. We recommend using DriverFix, a dedicated tool that automatically scans all connected devices for drivers and keeps them up to date.

How to solve prolific PL2303 driver issues?

Driver problems usually occur due to three reasons, either the driver is outdated, corrupted or there is a bug in the current version. While there may be other reasons, they don't have to be specifically driver related.

Of the three issues listed previously, you can manually update the driver using the steps listed in the previous section. For the other two, namely corrupt drivers or bugs in the current version, the methods listed below should work.

1. Reinstall the driver

1. Press StartSearch menu, enter Device Manager in the text field at the top, then Click on the relevant search results that appear. WindowsS
2. Locate and double-click the "Port" entry to expand and view the devices under it.
3. Now, right-click on the Prolific USB to Serial option and select Uninstall Device from the context menu.
4. Click Uninstall in the box that appears.

Once completed, restart your computer and Windows will automatically install new drivers for the device. If this does not happen, you already know how to manually install the prolific PL2303 driver Windows 11.

Expert Tip:

Some PC problems are difficult to solve, especially when they involve corrupted repositories or missing Windows files. If you are having trouble fixing errors, your system may be partially corrupted.
We recommend installing Restoro, a tool that will scan your machine and determine what the fault is.
Click here to download and start repairing.

Reinstalling the driver is a simple fix to use when the installed driver is corrupted. But the point here is to identify the corrupt driver, which is also very simple. Look for drivers with a warning mark near the lower left corner of their icon.

2. Rolling Back Driver Updates

1. Press or right-click the Start icon to launch the Quick Accessmenu, then select Select "Device Manager" from the option list. WindowsX
2. Now, double-click the Port entry.
3. Next, find and right-click Prolific USB to Serial and select Properties from the context menu.
4. Navigate to the "Drivers" tab.
5. Click Rollback Driverbutt.
6. Now, select the reason for rolling back the update and click on "Yes" at the bottom to start the process.

When you update a driver, Windows will retain files from the previously installed version in case something goes wrong and you have to revert to the previous version.

This is what we do when we talk about rolling back a driver update, basically going back to using the previous version.

However, if you see the "Rollback Driver" option is grayed out, it means the driver has not been updated or Windows has not stored files for it.

Why doesn’t Windows automatically install the driver?

Whenever you connect a new device or peripheral to your computer, Windows should ideally automatically detect it and download the associated driver. But not every piece of hardware is like that.

The driver will only be installed after it has been submitted to Microsoft and approved by them. Device manufacturers should submit their drivers and get approval from Microsoft to release them with other Windows updates.

But some of them didn’t. Some are due to lack of resources, while others may find uploading these drivers on their official website a more convenient option.

However, some manufacturers initially obtain Microsoft-approved drivers but upload subsequent updates on their websites.

In addition to this, some users have unknowingly configured settings so that Windows does not automatically search for updates.

In addition, sometimes the driver has been installed on the computer, but you may still be unable to access or use the related device.

What if the prolific PL2303 USB to Serial driver doesn’t work on Windows 11?

Some readers have complained that the prolific PL2303 USB-to-serial driver does not work on Windows 11.

If this is your situation, try the following solutions:

1. First, download and install the Prolific driver as shown in the first solution in this guide.
2. Click the "Search" icon on the taskbar, type "Device Manager", then open the app from the results.
3. Expand the Ports (COM and LPT) section by clicking on it.
4. Right-click on the prolific driver and select Update Driver.
5. Click "Browse my computer for driver".
6. Now click to let me select from the list of available drivers.
7. Select the latest version and click Next. If this doesn't work, you can try the process again and choose a different process.
8. Continue installation and restart your PC.

So, if you're wondering why Windows 11 doesn't recognize my USB device, it's likely that the relevant driver hasn't been installed yet, so the operating system can't recognize or connect to the device.

That’s all there is to know about installing the Prolific PL11 driver in Windows 2303 and the two most effective troubleshooting techniques. Additionally, you can likewise download the prolific USB to serial driver in Windows 10.

To know everything about updating installed drivers in Windows 11, check out our dedicated guide that explores all aspects and methods.

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