Step 1: Update your USB-Serial Controller D driver via Device Manager If Windows fails to find any updates, then head to the manufacturer’s official website to download the exact driver for your device and install it manually. To update your USB-Serial Controller D driver manually, first, you’ll need to go to Device Manager to update the driver automatically. It’s all done with just a couple of mouse clicks – easy even if you’re a computer newbie.

This is the quickest and easiest option.

You’ll need some computer skills and patience to update your drivers this way because you need to find exactly the right driver online, download it and install it step by step.

There are two ways you can update your USB-serial Controller D driver: How to update your USB-serial controller d driver

To fix it, you need to update your USB-serial Controller D driver.

If you’re facing issues with your USB-Serial Controller D, this always means that the current driver installed is outdated or corrupt. To communicate with your USB devices, your computer needs the correct driver.

Usb serial controller d win 7 x64