These are NOT same pl-2303 driver installer.exe torrent windows 7 as TOAD purchase. Support login is emailed upon contacting support. Purpose of this article is to guide you on how to FIX the “Prolific USB-to-Serial” driver issue with common cheap units.
In summary, this article is for: Windows XP, Windows 7, Windows 8, Windows 8. That means correct driver version is not installed. This confirms you need to install correct driver file. Available forum solutions to this problem are half-baked. Even vendors selling their “USB to Serial” adapters are baffled. To solve this intellectual infringement – original Prolific company modified their newest drivers to render the counterfeit adapters unusable. Unfortunately this decision also renders all earlier adapters inoperative.
The Prolific 64-bit drivers that Microsoft supplies via Windows Update, Versions 3. 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. BEFORE you are able to successfully install the correct driver. What worsens this issue is that there are many “Prolific Driver Removal Tools” that do not work properly.
1 and Window 10 are set by default to automatically update your drivers without your permission or even notifying you of the update. 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. Only 64-bit driver I have ever found that works with all the “Prolific” adapters is Version 3. Below installer program will remove all of the incompatible drivers — make a change so that Windows can never update the driver without your approval — and install the Version 3. Prolific USB to Serial Adapter . Supported device ID and product strings: .