A USB Windows driver refers to the software component that enables your computer to communicate with and use USB (Universal Serial Bus) devices. These devices can include a wide range of peripherals such as printers, external hard drives, flash drives, webcams, keyboards, mice, audio interfaces, and more.

When you connect a USB device to your computer, Windows will often automatically detect it and install the necessary driver. However, if the driver is not automatically installed or you need to update it, you can manually install or update the driver.