Prolific Usbtoserial Comm Port Version 333114 Driver |top| Link

Check the . If it reads 3.3.3.114 (or a newer version like 3.8.x.x ), and your hardware is older or a clone, it will not work. Step-by-Step Fix: Downgrading to a Stable Driver

Windows may attempt to "update" your working 3.3.3.114 driver back to the broken newer version. To prevent this, you can use the Group Policy Editor (Windows Pro) to disable driver updates for this specific hardware ID. 5. Compatibility prolific usbtoserial comm port version 333114 driver

Here is everything you need to know about why you need this version and how to get your hardware working. Check the