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Solution 2: Update Prolific USB to Serial Drivers Automatically If the device manager cannot help you solve this problem, try to use the next two solutions. In this step, windows will search the latest of prolific USB to Serial driver for Windows 10.Īfter Windows 10 detected the right driver, it will download and install it automatically. Search automatically for updated driver software. In your computer, maybe it is another comm port.ģ. Expand Ports (Com & LPT), right-click Prolific USB-to-Serial Comm Port (Com5) to select Update Driver Software. Open device manager by right-click Windows icon and choose it from the results.Ģ. It will help Windows 10 recognize the devices again and restart it.ġ. The normal way and fast way to fix usb-serial controller driver unavailable is to update the USB to the serial device driver in device manager. There are 3 ways you can do to solve it.ġ: Update Prolific USB-to-Serial Driver in Device ManagerĢ: Update Prolific USB to Serial Drivers Automaticallyģ: Manually Download Prolific USB to Serial Drivers for Windows 11/10 Solution 1: Update Prolific USB-to-Serial Driver in Device Manager So when you met this problem, do not worry about it. How to Download Prolific USB-to-Serial Comm Port Driver If you think your profilic USB cable is broken, you can get another one from here: Prolific USB 2.0 to RS-232 DB9 Serial Adapter. The USB to Serial devices is developed by Prolific to provide interface bridge solution to connect your legacy peripherals and application on Windows, Mac, Linux and Android system.

And when you open device manager, there is a yellow exclamation in the Ports (COM & LPT) list: Prolific USB-to-Serial Comm Port (COM5).Īnd when choosing the properties from the right-click context menu, the General tab shows a code 10 error: the device cannot start. If you are using a Prolific USB-to-Serial device such as PL2303, after upgrading the system to Windows 10, it is out of work. How to Update Prolific USB to Serial Driver Prolific USB to Serial Comm Port Driver Overview Prolific provides perfect solution to connect your legacy peripherals and application to any USB host platform.Prolific USB to Serial Comm Port Driver Overview Prolific offers complete USB to Serial/UART/RS232 and USB to Printer interface bridge solution for Windows, Mac, Linux, and Android platform.