Prolific Usbtoserial Comm Port Version 333114 Driver

Select from the list.

Many legacy serial applications only scan COM1-COM16.

Follow the on-screen prompts to complete the setup wizard, then restart your computer. Step 5: Force Windows to Use the Legacy Driver Plug your USB-to-Serial adapter back into a USB port. Open and expand Ports (COM & LPT) .

What version are you running? (Windows 10, Windows 11?) What type of equipment are you connecting to your PC? prolific usbtoserial comm port version 333114 driver

Right-click your Prolific device and select .

If you can tell me the you are seeing in Device Manager or what device you are trying to connect, I can offer more tailored troubleshooting steps.

Right-click on and select Update driver . Select Browse my computer for drivers . Select from the list

Check the box that says and click Uninstall . Step 4: Run the 3.3.3.114 Installer Open the extracted folder on your Desktop.

Understanding the Prolific USB-to-Serial Comm Port Version 3.3.3.114 Driver

Using incredibly old versions of this driver on modern 64-bit systems can cause system instability. Version 3.3.3.114 is widely considered the most stable release that supports older hardware variations without triggering system crashes. Step 5: Force Windows to Use the Legacy

Look under Ports (COM & LPT) for the "Prolific USB-to-Serial Comm Port" with a yellow warning triangle. Update Driver: Right-click the device > Update driver . Select "Browse my computer for drivers."

(Windows 10/11):