Serial Usb Adapter Driver

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How to Install Serial USB Adapter Driver on Windows

If you have a device that connects to your computer via a serial port, such as a modem, scanner, or printer, you might need a serial USB adapter driver to make it work. A serial USB adapter driver is a software that allows your operating system to communicate with USB serial port devices.

In this article, we will show you how to install serial USB adapter driver on Windows using two methods: using the Microsoft-provided in-box driver (Usbser.sys) or using the Prolific USB to Serial Controller driver.

Method 1: Using the Microsoft-provided in-box driver (Usbser.sys)

The Microsoft-provided in-box driver (Usbser.sys) is a generic driver that supports most devices that belong to the communications and CDC control device class. It is included in Windows 10 and later versions, and it is loaded automatically based on a compatible ID match. You do not need to write your own INF file or download any driver to use this method.

To install serial USB adapter driver using Usbser.sys, follow these steps:

Connect your device to your computer via a USB port.

Wait for Windows to detect your device and load Usbser.sys as the functional device object (FDO) in the device stack.

If Windows does not load Usbser.sys automatically, you can manually update the driver by going to Device Manager, right-clicking on your device, selecting Update driver, and choosing Browse my computer for drivers. Then, select Let me pick from a list of available drivers on my computer and choose USB Serial Device from the list.

Restart your computer if prompted.

For more information about Usbser.sys, you can visit this page.

Method 2: Using the Prolific USB to Serial Controller driver

The Prolific USB to Serial Controller driver is a specific driver that supports devices that use the Prolific chipset. It is not included in Windows, so you need to download it from the manufacturer's website or from a trusted source. You also need to write your own INF file or use an existing one to reference the driver.

To install serial USB adapter driver using the Prolific USB to Serial Controller driver, follow these steps:

Download the Prolific USB to Serial Controller driver from this page or this page.

Save the file to your hard drive and unzip it if necessary.

Connect your device to your computer via a USB port.

Go to Device Manager and right-click on your device. Select Update driver and choose Browse my computer for drivers.

Browse to the location where you extracted the driver files and select the INF file that matches your device.

Follow the on-screen instructions to complete the installation.

Restart your computer if prompted.

For more information about the Prolific USB to Serial Controller driver, you can visit this page.

Conclusion

In this article, we showed you how to install serial USB adapter driver on Windows using two methods: using the Microsoft-provided in-box driver (Usbser.sys) or using the Prolific USB to Serial Controller driver. We hope this article was helpful and informative for you. If you have any questions or feedback, please leave a comment below.

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