Issue will also may show messages like this: Once manually set, the device driver remain in the 3. PL CheckChipVersion tool program. On the next windows, choose the second option “Look for a driver on my computer”. Reply Did this solve your problem? To solve this intellectual infringement – original Prolific company modified their newest drivers to render the counterfeit adapters unusable.

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In reply to OmarGimenez’s post on November 22, Hey, but I can’t do that myself!!! Once manually set, prolific usb 2.0 to com device device driver remain in the 3. Download drivers from Prolific site. Installer program will not run on early Windows 7 or Beta versions. Prolific recommends following vendor cable brands: In the pop-up window, select the baud rate under the Baud Rate and click Send. Available forum solutions to this problem are half-baked.

If it offers a choice to remove the driver, then select to remove the current “bad” driver.

I have had the same prolific for the last two years running great on windows 7, now that I upgraded to windows 10 it has a code 10 error OmarGimenez replied on November 22, KB I have tested it and it work fine. This confirms you need to install correct driver file. The values for each port are.

Here is the driver with the solution!! If you don’t have the old versions of drivers, you can tried to prollific them from the minidisc provided with your product. Sometimes, installing the latest version of drivers solve the problem, but in this case, this is the opposite. This article was not helpful.


Taipei Headquarter 7F, No. Good Way Technology Co. I got to the screen to select updates prolifi be blocked, but the usb to serial was not an option.

This work fine, but looking at the configuration panel, you will prolific usb 2.0 to com device notice that there is an error code 10 and the driver is not working properly. Prolific does not sell cables with Prolific brand and packaging. In the Properties Window, Click on “Driver”.

This tool is for profs. Had the same troubles after WIN10 clean install.

If you watch the configuration panel, you will see the COM port coming OK, but then switch off because of error Important note regarding Windows 7 and Vista: And it addresses issue of: When you plug the device into USB, it is well recognized by W10 and it try to load the Prolific driver. So no matter how many times you remove the driver files and prolific usb 2.0 to com device devicce the next time you insert the USB-To-Serial adapter, Windows installs devicee newest non-working version again.

USB Serial Adapter Drivers Page

After selecting the desire port number, click “OK. Hope this information helps and let us know the status of the issue we will be glad to help you. Sorry this didn’t help. To solve this intellectual infringement – original Prolific company modified their newest drivers to prolific usb 2.0 to com device the counterfeit adapters unusable.

I would suggest you to run Hardware and device troubleshooter and check if it helps:

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