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1. #Prolific usb to serial driver windows 7 not working install#
2. #Prolific usb to serial driver windows 7 not working serial#

#Prolific usb to serial driver windows 7 not working serial#

Windows 64-bit Fix for: - All Windows 64-bit operating systems including Windows 10 USB to Serial Adapter OR other device.

#Prolific usb to serial driver windows 7 not working install#

The below installer program will remove all of the incompatible drivers, make a change so that Windows can never update the driver without your okay, and install the Version 3.3.2.102 compatible drivers. The only 64-bit driver I have ever found that works with all the "Prolific" adapters is Version 3.3.2.102. 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. What aggravates the issue is that there are many "Prolific Driver Removal Tools" that do not work properly as well! And Windows 8, 8.1, and Window 10 are set by default to automatically update your drivers without your permission or even notifying you of the update. However, if you didn't have a previous driver installed that worked, you'll have to go through the process of removing any PL-2303 driver installation programs,the actual driver files, and the information file BEFORE you are able to successfully install the correct driver.

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 once again. Or, you may get no error at all, but your device will not work. If one of these Prolific 64-bit drivers gets installed to your computer then your legacy device will no longer work and will issue the generic Code 10 error. Planned obsolescence? Getting a working driver installed by the average user is almost impossible. Unfortunately, it renders all earlier adapters inoperative and so you have to go out and buy new ones. So, Prolific made changes to their newest drivers to render the adapters using counterfeit chips unusable. The counterfeit chips use the same Vendor ID (VID_067B) and Product ID (PID_2303) as the authentic Prolific chips.

What has happened is that there have been counterfeit "Prolific" chips coming from China. Windows 32 and 64-bit Operating Systems - Prolific PL-2303 Driver Fix (VID_067B backyard fixes out there, but none of them are done properly and if they work it's just a temporary Band-Aid to the problem.