Use a tool like DDU (Display Driver Uninstaller) to wipe old ATI files.
If the official Catalyst driver fails, communities like LaptopVideo2Go and Guru3D host for newer NimeZ drivers. These allow modern AMD Adrenalin drivers to run on legacy Mobility chips. Proceed with caution —these are not official, but they often unlock better performance in older DX11 titles like Skyrim or League of Legends . Use a tool like DDU (Display Driver Uninstaller)