prolific usb to serial comm port driver windows 10 fix

Issue will also may show messages like this: This confirms you need to install correct driver file.) That means correct driver version is not installed.)Īnd if you double-click on it, you will see: (Notice in above picture, yellow triangle next to 'Prolific USB-to-Serial Comm Port (COM X)'.

'Device driver was not successfully installed'Īvailable forum solutions to this problem are half-baked.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 (VID_067B) and Product ID (PID_2303) - as the authentic Prolific chips. To solve this intellectual infringement - original Prolific company modified their newest drivers to render the counterfeit adapters unusable. Unfortunately this decision also renders all earlier adapters inoperative. The Prolific 64-bit drivers that Microsoft supplies via Windows Update, Versions 3.4.67.325, 3.4.25.218, 2.1.51.238 and 3.4.62.293 - will not work with most adapters and therefore shows the generic 'Code 10' error. Or you may get no error at all, but your device will still not work.

#Win 10 prolific usb to serial driver how to.

Prolific usb to serial comm port driver windows 10 fix