Here is the direct link to the page on John's site (www.miklor.com http://www.miklor.com) that provides the older v3.2.0.0 Prolific driver and instructions on how to install it:
http://www.miklor.com/COM/UV_Drivers.php
Also, Microsoft has a tool to override automatic driver updates in Windows 10. This might be helpful to prevent a rollback from later being undone by Windows Update:
https://support.microsoft.com/en-us/help/3073930/how-to-temporarily-prevent-...
If you have Windows 10 Pro or Enterprise, there are GPOs that can be set within Local Group Policy Editor (gpedit.msc) to prevent automatic driver updates in Windows Update. On other Windows 10 editions, equivalent settings can be applied directly via .reg imports.
Regarding Prolific driver incompatibilities in Windows 10 specifically, perhaps the newest drivers from Prolific's site will finally solve this problem, even in cables using counterfeit chips?
http://prolificusa.com/product/pl2303hx-rev-d-usb-serial-uart-bridge-control...
The "Windows Driver Installer Setup Program" on this page:
http://prolificusa.com/app/uploads/2018/02/PL2303_Prolific_DriverInstaller_v...
... also includes a "PL2303_CheckChipVersion_v1006.exe" utility that will print out the chipset USB Plug-n-Play ID (you can also get this from Device Manager).
HTH
(Peter)
On 9/20/2018 6:36 PM, Jardy via chirp_users wrote:
Windows 10 updates the Prolific driver to one that makes some Prolific cables not work. These cables have fake chips in them. Roll back your driver to 3.2.0.0. It will work then. For driver info, go to www.miklor.com http://www.miklor.com.
Jardy Dawson WA7JRD Message sent through sub space hailing frequencies using the Universal Translator.