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. 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)'. 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. This confirms you need to install correct driver file.)Issue will also may show messages like this:.
'This Device cannot start (Code 10)'. 'No driver installed for this device'. 'Device driver was not successfully installed'Available 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 (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. Windows 64-bit Fix:. All Windows 64-bit operating systems including Windows 10.
Prolific USB to Serial Adapter. Device using PL-2303 H/HXA/HX/X version chips.
Driver Version: 3.3.2.102. Driver Date: 09/29/08. Supported device ID and product strings:.
VID067B&PID2303 for 'Prolific USB-to-Serial Comm Port'Steps:. Download and save the 'PL230364bit Installer.exe' by clicking. Unplug all USB-To-Serial adapters from your computer - and double-click on 'PL230364bitInstaller.exe'. When it prompts you, plug in one (1) of your USB-To-Serial adapters and click 'Continue'.
Reboot your computer. Windows 32-bit Fix:. All Windows 32-bit operating systems from XP up. Prolific USB to Serial Adapter. Device using PL-2303 H/HXA/HX/X version chips.
Driver Version: 2.0.2.8. Driver Date: 11/20/07. Supported device ID and product strings:. VID067B&PID2303 for 'Prolific USB-to-Serial Comm Port'Steps:. Download and Save the 'PL-2303Driver Installer.exe' by clicking. Run the installer program.
This article demonstrates how to install driver for USB to Serial adapter on Windows 8. USB to Serial adapter is available in. Connect the USB to Serial adapter to the USB port of your Windows 8 PC/Laptop. Go to Device Manager and see under Ports (CoM & LPT) section, a device named 'Prolific USB-to-Serial Comm Port' must be present there. If the driver is installed properly, you will be able to use the adapter otherwise a warning icon will be present with the adapter name as shown below:Continue reading article if driver is not installed properly.
Now we need to install the driver from the CD you have got with USB to Serial adapter package. Insert the CD in your system, go to CD Drive 2303 all driver WIN8. Double click the executable file 2303 Win8 Driver Installer.exe.An installation wizard will open as shown below:. Click Next, read the License Agreement terms carefully. Accept the terms and click on Next. After installation is done, click Finish to close the installation wizard.
Go to Device Manager, right click on USB to Serial adapter name and select 'Update Driver Software.' .Following window will open:.
Prolific Usb To Serial Comm Port Driver For Windows 7 Free Download
Click on 'Browse my computer for driver software'. Click on 'Let me pick from a list of device drivers on my computer'. A new window will appear showing compatible hardware as shown below:. Select the driver version 3.2.0.0 7/31/2007 and click Next. Driver will be updated. Now Device Manager will show the updated driver (with no warning) and adapter is ready for use.