If you are unsure which driver to download, check the on Windows: Right-click the Start button and select Device Manager .
To download a driver for a COM port (USB-to-Serial bridge), you first need to identify which chip is used in your device or adapter. Most modern devices use one of four common chips. 1. Identify Your Device
Look for an item under or Other devices (often labeled "USB2.0-Serial" or "Unknown device").