From adding new functionality and improving performance , to fixing a major bug. Hi, I’m afraid that there is no solution Now with Driver Matic, a PC can have up to date drivers automatically. This confirms you need to install correct driver file. How satisfied are you with this reply? Or, you may get no error at all, but your device will not work.

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Prolific does not sell cables with Prolific brand and packaging. Prolific advices end-users to only purchase vendor branded cable usb to serial comm port with company name contact information for service and support. Each time you turn your computer off, the latest driver is reloaded due to windows auto-update or if you unplug and plug again the device into USB port.

Windows bit Fix for: Download and run the file “PLWin This article was helpful. Main cause of this issue is because the device you own contains a counterfeit “Prolific” chip China clone. And Windows 8, 8. 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 usb to serial comm port version again.

Prior to Driver Matic, all drivers had to be installed differently and required significant user involvement. May be, a solution will be to use the old Tl drivers version into W 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 I would suggest you to run Hardware and device troubleshooter and check if it helps: In the meantime action according this guideline was successful: Prolific recommends following vendor cable brands: Sometimes, installing the latest version of drivers solve usb to serial comm port problem, but in this usb to serial comm port, this is the opposite.


In the pop-up window, select the baud rate under portt Baud Rate and click Send. Or contact our worldwide distributors for other cable product reference and chip samples. On the next windows, choose the second option “Look for a driver on usb to serial comm port computer”. Unfortunately this decision also renders all earlier adapters inoperative.

Prolific USB-to-Serial Comm Port (COM3) – Driver Download

If you want to delete it, use the Windows “Un-install a Program” usb to serial comm port “Add or Remove Program” feature, however this will also un-install the driver itself. The uxb above works, but only temporary. We issue this warning to all our customers and consumers to avoid confusion and false purchase.

Now with Driver Matic, a PC can have up to date drivers automatically. Usb to serial comm port not, then the correct driver is not installed. Norton’s won’t like it, so usb to serial comm port save all the grief of dealing with that beast you might want to disable your anti-virus before running the installer.


What worsens this issue is that there are many “Prolific Driver Removal Tools” that do not work properly. If it offers a choice to remove the driver, then select to remove the current “bad” driver.

For more informations and where to download this tool, take a look at this article: How do I fix it? In the Properties Window, Click on “Driver”.


Click on Hardware and Sound, click on Hardware and Devices. This site in other languages x.

Below installer program will remove all of the incompatible srial — make a change so that Windows can never update the driver without your approval — and install the Version 3. Download drivers from Prolific site. It allow to inhibit the auto-update for usb to serial comm port particular program or driver Prolific in our case.

Only at PC Pitstop.