The AMD Cleanup Utility is designed to thoroughly remove any previously installed AMD driver files, registries, and driver store from systems running Microsoft Windows 7 and later. The cleanup process includes removing AMD display and audio drivers as well as AMD software components but does not remove AMD chipset driver components such as GPIO, SATA, USB, etc.

The AMD Cleanup Utility helps to prepare the system for a successful driver installation but should only be used if the normal uninstall procedure using the Windows Control Panel's Programs and Features option was unsuccessful.

Complete instructions on how to use here.