So, what is PL2303 USB to Serial driver? Like any other driver, its job is to establish a connection between the OS and the device, which in this case is the PL2303 adapter. Without the driver, the device won’t get recognized and thus remain non-functional. In most cases, Windows 11 should automatically install the driver for the cable, but sometimes you will have to manually go ahead with the PL2303 driver Windows 11 64-bit download.

What is PL2303 USB to Serial driver?

Connecting RS-232 serial devices to a Windows host computer with USB connectivity is made easy with the help of the PL-2303 USB to Serial converter. It provides a bridge connection by having a standard DB 9-pin male serial port connector on one end and a standard Type-A USB plug connector on the other end of the cable. Here are some of the possible errors related to the Prolific PL2303 USB to the serial adapter:

Prolific PL2303 This Device cannot start (Code 10) Prolific PL2303 No driver installed for this device Prolific PL2303 Device driver was not successfully installed PL2303TA do not support Windows 11 or later please contact your supplier Please install corresponding PL2303 driver to support Windows 11 This is not Prolific PC2303 error (Windows 11) PL2303 driver not working (Windows 11) PL2303 phased out

This is the case when the driver is either corrupt or outdated. And in this case, there might be no relevant drivers installed unless you check the device manager. Also, read this article to find out how to fix the outdated drivers error in Windows 11. Now that you understand how the whole concept of Windows automatically detecting and installing the relevant driver works, let’s walk you through the steps to install the PL2303 driver in Windows 11.

Does Windows 11 support RS232?

Yes, Windows 11 supports and recommends RS232. Follow this download, install & troubleshoot guide to find out how to install PL2303 USB to serial driver in Windows 11 and fix issues.

How do I download PL2303 drivers for Windows 11?

1. Via Windows Update

Windows identifies the connected devices and, in most cases, automatically downloads the relevant driver. But 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’re looking for PL2303TA driver for Windows 11, then this solution might help.

2. Manually from the website

After installing the Prolific PL2303 driver in Windows 11, restart the computer for the changes to come into effect. Once done, you can use the PL2303 USB to serial cable.

3. Use a dedicated tool

If the manual method sounds too tricky, you can always use a reliable third-party app. We recommend using DriverFix, a dedicated tool that automatically scans for the drivers for all connected devices, and keeps them up-to-date. Here’s how you can easily do it: Now your drivers are up-to-date and you should enjoy better device performance without any driver-related issues.

How do I fix issues with Prolific PL2303 drivers?

Issues with the driver generally arise due to three reasons, either the driver is outdated, corrupt, or there is a bug in the current version. While there could be other reasons, they don’t have to do specifically with the driver. Amongst the three issues listed earlier, you can manually update the driver using the steps listed in the previous section. For the other two, i.e., a corrupt driver or a bug in the current version, the methods listed below should work.

1. Reinstall the driver

Once done, restart the computer, and Windows will automatically install a fresh driver for the device. In case that doesn’t happen, you already know how to install Prolific PL2303 driver Windows 11 manually. Reinstalling the driver is a simple fix employed when the installed one is corrupt. But the focus here is on identifying the corrupt driver, which too is simple. Look for the driver with a warning mark near the bottom-left corner of its icon.

2. Roll back the driver update

When you update a driver, Windows will keep the files for the previously installed version in case things go wrong and you have to revert to the previous version. And this is what we do when we talk about rolling back a driver update, basically going back to using the previous version. But if you see the Roll Back Driver option greyed out, it means that either the driver has not been updated or Windows didn’t store the files for it.

Why doesn’t Windows automatically install the drivers?

Whenever you connect a new device or peripheral to your computer, Windows should ideally automatically detect it and download the relevant driver. But that’s not the case for every piece of hardware. The driver will only be installed if it has been submitted to Microsoft and is approved by them. Device manufacturers are supposed to submit their drivers and get them approved by Microsoft to get them released along with other Windows updates. But several of them don’t do it. Some are due to a lack of resources, while others may find uploading these drivers on their official website a more convenient option. There are manufacturers who, though, get the driver approved initially by Microsoft but upload the subsequent updates on their website. Apart from that, several users unknowingly configure the settings such that Windows doesn’t automatically search for updates. Besides, there are times when the driver is already installed on the computer, but you may still be unable to access or use the relevant device.

What if the Prolific PL2303 USB-to-Serial driver is not working on Windows 11?

Several readers complained that the Prolific PL2303 USB-to-Serial driver doesn’t work on Windows 11. If this is also your case, try following the following solution: So, if you wondering why does Windows 11 not recognize my USB device, it’s likely that the relevant driver has not been installed, and, as a result, the OS can’t identify or connect to the device. That’s all there’s to know about installing the Prolific PL2303 driver in Windows 11, along with the two most effective troubleshooting techniques. Also, you can similarly download the Prolific USB to the serial driver in Windows 10. To find out all about updating the installed drivers in Windows 11, check our dedicated guide that explores all the aspects and methods. Tell us about your experience with the PL2303 USB-to-Serial cable in the comments section below.

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