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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. Unfortunately this decision also renders all earlier adapters inoperative. To solve this intellectual infringement - original Prolific company modified their newest drivers to render the counterfeit adapters unusable. The counterfeit chip use the same Vendor ID (VID_067B) and Product ID (PID_2303) - as the authentic Prolific chips. Main cause of this issue is because the device you own contains a counterfeit "Prolific" chip (China clone). Even vendors selling their "USB to Serial" adapters are baffled. "Device driver was not successfully installed"Īvailable forum solutions to this problem are half-baked.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)". Works on 32/64-bit.Īnd it addresses issue of: Prolific PL-2303 Driver Fix (VID_067B&PID_2303)ĭriver issue will show inside your Device Manager like this: In summary, this article is for: Windows XP, Windows 7, Windows 8, Windows 8.1 and Windows 10. Purpose of this article is to guide you on how to FIX the "Prolific USB-to-Serial" driver issue with common cheap units. So convenient and save time! No worry to try it as you can enjoy 30-day money back and professional tech support anytime guarantee.Article credit goes to:

But if you upgrade to PRO Version, you can get all your drivers including Prolific Usb to Serial Driver up-to-date with just one click - Update All. Have a try on Driver Easy Free Version, it will offer the latest drivers for you to install. To save your time, we recommend you an extremely useful driver tool - Driver Easy. Download Prolific Usb to Serial Driver automatically (Recommended)Īs you can see, you need to download and install the driver all by yourself in Way 1. Then reboot your Windows system to make the driver take effect.

Go to Prolific Usb to Serial Driver download Center. You can choose to download Prolific Usb to Serial driver from its official website. D ownload Prolific Usb to Serial Driver manually ☞ 2. Download Prolific Usb to Serial Driver automatically (Recommended) Download Prolific Usb to Serial Driver manually Go on with the ways below, get latest driver on your Windows. We are going to tell you two trustworthy ways to download Prolific Usb to Serial driver. If you are reading on this article, you must be looking for the way to download Prolific Usb to Serial Driver. Luckily, here is the right place you come in.