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Solution 2 – Automatically Update Prolific USB to Serial Drivers If device manager cannot help you resolve this issue, try using the following two solutions. In this step, Windows will search for the latest from the prolific USB to serial driver for Windows 10.Īfter Windows 10 detects the correct driver, it will automatically download and install it. Automatically search for updated driver software. On your computer, it may be another communications port.ģ. Expand Ports (Com and LPT) right-click Prolific USB-to-Serial Comm Port (Com5) to select Update driver software. Open device manager by right-clicking on the icon Windows and choose it from the results.Ģ. It will help Windows 10 to recognize the devices again and restart it.ġ. The normal and quick way to solve it is to update the USB to serial device driver in device manager. Solution 1: Update Prolific USB to Serial Driver in Device Manager So when you have encountered this problem, don’t worry. How to Download Prolific USB to Serial Communications Port Driver If you think your USB profilic cable is broken, you can get another one from here: Prolific USB 2.0 to RS-232 DB9 Adapter. Prolific develops the USB to serial devices to provide an interface bridging solution to connect your legacy peripherals and applications on Windows, Mac, Linux and Android systems. Īnd when choosing properties from the right-click context menu, the General tab shows a code 10 error: device cannot start. And when you open device manager, there is a yellow exclamation mark in the list of Ports (COM and LPT): Prolific USB-to-Serial Comm Port (COM5). If you are using a USB to serial device prolific What PL2303, after upgrading the system to Windows 10, it doesn’t work. Prolific USB to Serial Communication Port Driver Overview