Go to “ View > Show hidden devices” and see if it brings the Ports (COM & LPT) node in the Device Manager. If the Ports (COM & LPT) node is missing or not available in the Device Manager, it may be hidden. You will see the driver in the Device Manager under the Ports (COM & LPT) node when you connect your device to your computer via the Prolific PL2303 cable.
Now, follow the on-screen instructions to install the Prolific PL2303 driver on your computer. You will find the installer file inside the folder. 
Select the location on your computer to extract the folder by clicking on the Browse button. Right-click on the Zip file and select Extract. The installer file will be downloaded in a zip format. Click on the PL2303_Prolific_DriverInstaller link to download the Prolific driver. Visit the official website of Prolific by clicking on the above link. The steps to download and install the Prolific PL2303 driver on your Windows 11 device are written below: If you see an error Please install the corresponding PL2303 driver to support Windows 11, then go to to download PL2303 (Prolific) driver. Please install the corresponding PL2303 driver to support Windows 11 How to install PL2303 (Prolific) driver on Windows 11Īfter connecting a device with a serial port with the computer via the Prolific PL2303 cable, some users have received the following error message: In this article, we will show you how to install PL2303 (Prolific) driver on Windows 11. If you encounter this problem, you have to install the required Prolific USB-to-serial driver from the manufacturer’s official website. Some users have experienced such an issue while connecting their computer to a device with a serial port via the Prolific USB-to-Serial adapter cable. In some cases, Windows fails to install the compatible driver and displays an error on the screen. Hence, drivers are necessary for the proper functioning of devices connected to your computer. 
Drivers let an operating system know what type of device is connected to it. When you connect a device with your Windows computer, Windows automatically installs its driver. Prolific PL2303 is a USB-to-Serial adapter cable that lets you connect your computer to the devices with serial ports, like a PLC (Programmable Logic Controller).
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