I have been using a Usb-to-Serial cable for many years without problem at windows xp and windows 7 system. Just recently upgraded to windows 10 , the cable does not work properly any more.
The Prolific USB-to-Serial Comm Port shows not working properly in the system Device Manager. There is a yellow exclamation mark next to my Prolific USB in device manager as shown below screenshots:
Device Status of the Device’s Property shows:
This device cannot start. (Code 10)
A device which does not exist was specified.
- Reboot your computer – this is always a first step to resolving any problems, if it works – great, if not – proceed to the next step!
- Select Start > All Programs > Windows Update
- Right-click on My Computer
- Click Properties > Hardware menu tab > Device Manager
- Double-click the device that is causing the error (there will be a yellow triangle with exclamation mark to the left of it)
- Right-click the specific device and select Properties
- Click on the Driver menu tab and select Update Driver
- Windows may ask for the path of the driver in which case you will need to either insert your Drivers disk (if you have it) or download the Drivers from the manufacturers website
- Restart your computer
1. Download the correct driver
Download from this link: USB-SERIAL Driver V3.3.11.152
Unzip and run the installer, “PL2303_Prolific_DriverInstaller_v1210.exe”.
2. Change Default Driver to version 3.3.11.152
3. Verify from Device Manager