Download and Save the 'PL-2303Driver Installer.exe' by clicking. VID067B&PID2303 for 'Prolific USB-to-Serial Comm Port'Steps. Device using PL-2303 H/HXA/HX/X version chips.ĭriver Version: 2.0.2.8. All Windows 32-bit operating systems from XP up. When it prompts you, plug in one (1) of your USB-To-Serial adapters and click 'Continue'.

Unplug all USB-To-Serial adapters from your computer - and double-click on 'PL230364bitInstaller.exe'. Download and save the 'PL230364bit Installer.exe' by clicking. Device using PL-2303 H/HXA/HX/X version chips.ĭriver Version: 3.3.2.102. All Windows 64-bit operating systems including Windows 10. Even vendors selling their 'USB to Serial' adapters are baffled.Main cause of this issue is because the device you own contains a counterfeit 'Prolific' chip (China clone).The counterfeit chip use the same Vendor ID (VID067B) and Product ID (PID2303) - as the authentic Prolific chips.To solve this intellectual infringement - original Prolific company modified their newest drivers to render the counterfeit adapters unusable. 'Device driver was not successfully installed'Available forum solutions to this problem are half-baked. Prolific Usb To Serial Comm Port Driver For Windows 7 Free Download.This confirms you need to install correct driver file.)Issue will also may show messages like this. That means correct driver version is not installed.)And if you double-click on it, you will see:(Notice in above picture, Code 10 error. Works on 32/64-bit.And it addresses issue of: Prolific PL-2303 Driver Fix (VID067B&PID2303)Driver issue will show inside your Device Manager like this:(Notice in above picture, yellow triangle next to 'Prolific USB-to-Serial Comm Port (COM X)'. Article credit goes to:-Purpose of this article is to guide you on how to FIX the 'Prolific USB-to-Serial' driver issue with common cheap units.In summary, this article is for: Windows XP, Windows 7, Windows 8, Windows 8.1 and Windows 10.

Prolific usb to serial comm port yellow