The IntelĀ® Watchdog Timer Driver (also known as IntelĀ® WDT) is a system driver used for managing the Watchdog Timer functionality on Intel-based systems. A Watchdog Timer (WDT) is a hardware or software timer that resets the system in the event of a software failure or system lockup, ensuring the system does not become unresponsive. The WDT is typically used in embedded systems, servers, and systems that require high reliability.