Descarga del controlador amd 18.3.4
Encienda y entre a BIOS, valla a [Peripherals] > [GFX Configuration] > [Integrated Graphics] y seleccione [Disabled]. Guarde cambios y reinicie el sistema. Instale el controlador AMD graphics. AMD/ATI has the most stupid software to control their hardware, not to mention the installers. try to search for RadeonSoftwareVersion in windows registry and change it manually to 18.3.1 as it may stick to old version even if you update.