I don't know where to put this. Is not pure driver topic, neither games or modifications but a mix of them. I play a lot of my games with SweetFX. This kind of shader suite that surely almost everybody know, adds shader effects to the games. It consist of a config file, shader files and a DLL in order to hook the changes fooling the game. You have to paste d3d9.dll (Direct3D 9), dxgi.dll (Direct3D 10 and 11) or OpenGL32.dll (OpenGL) depending of the game. A few days ago the Windows 10 1903 update landed on my computer and I've seen some strange things that I can not explain and need help. First of them is: if I use SweetFX is not possible to force fullscreen exclusive mode anymore. Avoiding SweetFX, you have to disable Windows GameBar, DVR and check in "Disable full screen optimizations" in the properties of every game exe you want to run in fullscreen exclusive mode. If not, this windows update will force every game to run in new borderless mode if the game tries to run in exclusive mode. But if a SweetFX library is placed in the game path, those settings won't work and exclusive mode is not possible. Second, Assassin's Creed III (and other AC games) do strange things. When using D3D9.DLL or DXGI.DLL sweetFX file, the game crash. But using OPENGL32.DLL the game works fine, and sweetFX works too!! WTF? Those are not OpenGL games!! How a windows update can make this kind of thing is getting me mad. Someone that had to deal with that update for longer has any idea about it? Thank you!