Guild Wars 2

Been encountering the following error when game starts. The game can run perfectly fine when inside http://puu.sh/d6akp/23a3da70e4.jpg
[Translation:
GW2.exe Access point cannot be found
“The procedure entry point CreateDXGIFactory2 could not be located in the dynamic link library C:\Windows\SYSTEM32\d3d11.dll.” ]

The error started to come since last Windows Update, running SweetFX, seems to come from SweetFX. Anyone knows how to fix it?
Not looking to not use SweetFX. I wanna keep on using it.

This message appears also if I open the Trading Post

Same problem, everything is working fine but it’s kinda annoying when launching the game. It appeared when I started using SweetFX, but I don’t know if it’s linked because I get the same problem when launching the game without SweetFX.