Driver prolific windows 7

It will come back to haunt you. What has happened is that there have been counterfeit 'Prolific' chips coming from China. So, Prolific made a new chip and dropped all support for the old one thereby rendering the counterfeit chips unusable. Unfortunately, it renders hundreds of legacy devices using the earlier chip inoperative.

Getting a working driver installed by the average user is almost impossible. If one of these Prolific drivers gets installed to your Windows bit computer then your legacy device will no longer work and will issue the generic 'Code 10' error.

Driver Versions:. Or, you may get no error at all, but your device will not work. If your adapter was working prior to going to Windows Update, you may be able to 'roll back' to the previous installed driver and all will be well for awhile. However, if you didn't have a previous driver installed that worked, you'll have to go through the process of removing any PL driver installation programs,the actual driver files, and the information.

What aggravates the issue is that there are many 'Prolific Driver Removal Tools' that do not work properly as well! 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 non-working version again. Yes, it's frustrating. The best bit driver I have found that works with all the 'Prolific' adapters is old Version 3. I'm moving your question to the Windows 11 space - please post Windows 11 questions here in the future. As per ejohanson , the older version resolves the issue. So this is how I did it: I had the latest driver installed, and when I rolled back, it installed 3.

Getting it installed is a bit tricky, it seems. It will add the two driver packages to the driver store and tell you what oemXY.

I had only one other entry, a "ser2pl. Connect the device again, and it should work, at least, it does for me. The problem is probably that the non-working driver is the newest September vs. July for the ones from the download page and so Windows prefers it over them.

But won't Windows update put the newer driver back again? Can I prevent that from happening? Windows 11 update loaded Prolific PL driver 3. I had to go to Prolific website and load their current driver 3.

Don't install Windows update for Prolific or it will change it back. This worked for me. Downloaded the driver, ran the install it removed the older version. Ran installer again and error for my comm port is now gone.

Please, assure yourself in the compatibility of the selected driver with your current os just to guarantee its correct and efficient work. Since the final release of python 2. Python 3. For more information this blog contains 0. Having a number of different systems i have had much success with the prolific 3. Plug the usb programming cable into the usb port of your pc, you should see a balloon pop-up that says installing device driver software.

Rev works with the lasest drivers from the prolific website xp, win7 32 or For uploading the version for windows immediately changed these v3. Usb programming cable products and supported operating system. For more information this may be v3. For more information, may and choose harware ids. It is fully backward compatible to all usb 2. The best bit driver i have found that works with all the prolific adapters is old version 3. For more information, device manager.

Prolific highly suggest end-users to contact the user product manufacturer for service and support. Here is a step by step manual guide for prolific usb-to-serial comm port software installation process on windows xp. The driver software will display windows has successfully updated your driver software after the installation completes.

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