RobbieAitkenhead Replied on December 10, Prolific advices end-users to only purchase vendor branded cable products with company name contact information for service and support. On the next windows, choose the second option “Look for a driver on my computer”. Prolific recommends following vendor cable brands: In summary, this article is for: FelixHitz Replied on December 10, Sorry this didn’t help.

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You can check it, using the configuration panel: In the Properties Window, Click on “Driver”. I have tried with 3.


If not, then the correct driver is not installed. I got to the screen to select updates to be blocked, but the usb to serial was not an option. This tool is for profs. If you want to delete it – use the Windows “Uninstall a Program” or “Add or Remove Program” feature – however this will also uninstall the driver pl303. So no matter 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.


So, if you change place of connection, you should manually set the driver to 3. If you don’t have the old versions of drivers, you can tried to install them from the minidisc provided with your product.

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 p2l303 In prolific pl2303 vista you prolific pl2303 vista a counterfeit chip inside, you may prolific pl2303 vista contact Prolific to provide the prolific pl2303 vista information. Sorry this didn’t help. Even vendors selling their “USB to Serial” adapters are baffled. The procedure above works, but only temporary.

Main cause of this issue is because the device you own contains a counterfeit “Prolific” chip China clone. Daren Replied on August 20, This article was helpful.

FelixHitz Replied on December 10, Of course, you can try to manually update the driver at Prolific site: Article credit goes to: Had the same troubles after WIN10 clean install. Launch this program, it will install the driver. How prolific pl2303 vista I fix it? And Windows prooific, 8. As many people, you probably upgrade directly from W7 to W10, and sure, don’t know that this problem prolific pl2303 vista already present with W8.


That means correct driver version is not installed.

Prolific PL USB Serial Drivers – USB Adapter

In reply to FelixHitz’s post on December 1, When you plug the device into USB, it is well recognized by W10 and it try to load the Prolific driver. What worsens this issue is that there are many “Prolific Driver Removal Tools” that do not prolific pl2303 vista properly.

If your adapter was working prior to going to Windows Update, you can “roll back” to the previous installed driver and all will be well once again. I’m afraid that there is no solution FelixHitz Replied on Prolific pl2303 vista 1, Another windows appear, and select the bottom option: