A Network Scanner Driver in the context of Windows refers to a software component that enables your computer to communicate with a network scanner device, such as a scanner connected over Ethernet or Wi-Fi. These scanners typically allow you to scan documents and send them directly to your computer or a networked location.

The Network Scanner Driver is essential for making the scanner work on your network and providing necessary functionalities like scanning documents over a network or integrating with other applications (such as OCR software or document management systems).