Tech support scams are an industry-wide issue where scammers attempt to trick you into paying for unnecessary technical support services. It allow to inhibit the auto-update for a particular program or driver Prolific in our case. Download and install this latest version 3. In reply to OmarGimenez’s post on November 22, How do I fix it?

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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.

Prolific USB to Serial Comm Port Driver – USB Driver

Once manually set, the device driver remain in the 3. So, if you change place of connection, you should manually set the driver to 3. You can check it, using the configuration panel: Had usb-to-seerial same troubles after WIN10 clean install. I would suggest you to run Hardware and device troubleshooter and check if it helps: You should now have a list showing all versions of the driver available. Later version, like 3.


Another windows appear, and select the bottom option: Connect your device, choose the correct COM port, and select the baud co,m. The procedure above works, but only temporary. Hi Thanks for the information it works a treat. In case you suspect a counterfeit chip inside, you may also contact Prolific to provide the vendor information.


May be, a solution will be to use the old W7 drivers pgolific into W Run the Sirf Demo software. Prolific will take proper and severe actions to cease and confiscate these counterfeit products. On the next windows, choose the second option “Look for a driver on my computer”.

When you plug the device into USB, it is well recognized by W10 and it try to load the Prolific driver. In reply to FelixHitz’s post on December 1, Hi, I’m afraid that there is no solution Download and prollfic this latest version 3. How satisfied are you with this reply? For more informations and where to download this tool, take a look at this article: RobbieAitkenhead Replied on December 10, Counterfeit IC products show usb-to-serail the same outside chip markings but generally are of poor quality and causes Windows driver compatibility issues Yellow Mark Error Code 10 in Device Manager.

We issue this warning to all our customers and consumers to avoid confusion and false purchase. There is lot’s of people reporting problems with W10 and Prolific devices based on asux PL adapter. Click on Hardware and Sound, click on Hardware and Devices.


Hope this information helps and let us know the status of the issue we will be glad to help you. In the meantime action according this guideline was successful: I have the latest driver from prolific and they stated its a windows 10 issue. It allow to inhibit the auto-update for a particular program or driver Prolific in our case. Here is the driver with the solution!! Of course, you can try prllific manually update the driver at Prolific site: StanP12 Replied on December 16, Download drivers from Prolific site.