Uninstall Reshade - The Witcher 3

Hi, i'm trying since 1 hour to uninstall Reshade because of i got some kind of old version (named Reshade 0.18.7.869 on my game), and thus i try to uninstall this version to install the recent one.However, even if I deleted the reshade-shaders folder and the dxgi.dll, this doesn't work and the old version of Reshade is still on my game.