Click Update next to the flagged Prolific USB to Serial driver to automatically download the correct version of that driver, then you can manually install it (you can do this with the FREE version).Driver Easy will then scan your computer and detect any problem drivers. Run Driver Easy and click the Scan Now button.Driver Easy will automatically recognize your system and find the correct driver for your exact Prolific adapter, and your Windows version, and it will download and install them correctly: Automatic driver update – If you don’t have the time, patience or computer skills to update your Prolific USB to Serial driver manually, you can, instead, do it automatically with Driver Easy.Be sure to choose the only driver that is compatible with your Windows version.

Manual driver update – You can update your Prolific USB to Serial driver manually by going to the official Prolific website, and searching for the most recent correct driver.You can update your Prolific USB to Serial driver to the latest version either manually or automatically. So it would help if you update the driver to the latest version.

Your not working Prolific USB to Serial driver problem could be caused by the corrupted, missing or outdated driver itself. Solution 1: Update your Prolific USB to Serial driver to the latest version

Roll your Prolific USB to Serial driver back to an older version.

Update your Prolific USB to Serial driver to the latest version.

More importantly, you can easily fix it with the solutions here. We’ve seen many Windows users reporting this Prolific USB to Serial driver not working on Windows 10 issue. That could be really frustrating…ĭon’t panic.

Fail to connect your devices with Windows 10 using the Prolific USB to Serial adapter cable? Besides, you might notice there’s a yellow warning mark with Prolific USB to Serial driver in Device Manager.

Prolific usb to serial comm port 1