2- After installing the drivers Connect the USB adapter cable into the computer,follow these steps to open the device manager:     -From the start screen,push and hold the windows key( and then press "x" on your keyboard.Choose "Device manager" from the menu that pops up.

3- You need to force this driver version by going to device manager
Right click in:

PL2303HXA PHASED OUT SINCE 2012. PLEASE CONTACT YOUR SUPPLIER.

 and click” Update software”

4- Click “Browse my computer for driver software” to locate and install driver software manually.

5- You just click the bottom option “Let me pick from a list of device drivers on my computer” to show the list of installed driver software compatible with the device.

6- From the list of installed drivers. Look for the driver version. 3.3.2.102 click it to select and click Next to continue.

7- Windows will then install the driver to the system.

8- Wait until Windows has successfully updated your driver software. Click close when finished.

9- You will now see the “Prolific USB- to-Serial Comm port” is installed properly. Right click properties the device again to confirm the driver version.
Note: Please remember to use the cable in the same USB port on your computer - otherwise you will need to perform this procedure again.