Thanks for your feedback, it helps us improve the site. The “Driver Version” must say “3. This confirms you need to install correct driver file. I have the latest driver from prolific and they stated its a windows 10 issue. Click on Hardware and Sound, click on Hardware and Devices.

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Click on Hardware and Sound, click on Hardware and Devices. Sorry this didn’t help. On the next windows, choose the second option “Look for a driver on my computer”. PL CheckChipVersion tool program. If you have previously used the PL with W7 and upgrade to W10, it’s simple because the previous versions of the drivers are still on your computer. Here is the driver with prolific usb 2.0 to com solution!!

And it addresses issue of: If you don’t have the old versions of drivers, you can tried to install them from the minidisc provided with your product.

Prrolific have had the same prolific for the last two years running great on windows 7, prolific usb 2.0 to com that I upgraded to windows 10 it has a code 10 error You must uzb ever step in the process in exact order.


Hi, I’m afraid that there is no solution The only problem with it, is that, it reload the latest driver when you plug the device on a never used USB port.

Prolific Technology Inc. (USB to UART / RS / Serial)

Then run the installer again to install the correct driver. OmarGimenez Replied on November 22, This article was helpful. It don’t care, because the old version is now available in the list, uab you can proceed as mentioned above.

Another windows appear, and select the bottom option: Run the Sirf Demo software. I have tested it and it work fine. I have the same question Of course, you can try to manually update the driver at Prolific site: Tell prklific about your experience with our site. Available forum solutions to this prolific usb 2.0 to com are half-baked.

Type troubleshooting in the search bar, click on troubleshooting.

2. This article was not helpful. Only bit driver I have ever found that works with all the “Prolific” adapters is Version 3. This confirms you need to install correct driver file. Main cause of this issue is because the device you own contains a counterfeit “Prolific” chip Prolific usb 2.0 to com clone.


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I don’t want to send my devices to trash because they are too old less than a year! So no prolific usb 2.0 to com how many times you remove the driver files and reboot – the next time you insert the USB-To-Serial adapter, Windows installs the newest non-working version again. KB I have tested it and it work fine. Below installer program will remove all of the incompatible drivers — make prolific usb 2.0 to com change so that Windows can never update the driver without your approval — and install the Version 3.

FelixHitz Replied on December 1, So, if you change place of connection, you should manually set the driver to 3. Connect your device, choose the correct COM port, and select the baud rate.

The latest version doesn’t work anymore with old hardware, and you need to downgrade the driver.

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