The AMD Special Tools Driver is a Windows driver package that is often included in specific AMD hardware or software installations. It's typically part of a larger set of tools that help manage AMD hardware such as graphics cards, processors, and associated technologies. The "special tools" part usually refers to utility drivers or management software that aids in tuning, configuring, or optimizing AMD hardware on a PC.

This driver might be bundled with AMD Catalyst Control Center or AMD Radeon Software (for graphics cards), or it might be part of AMD's chipset drivers for motherboards with AMD CPUs. These special drivers may enable features like power management, overclocking, or the monitoring of system temperatures and performance.