Gmod - Windows 8 your directx is out of date

I’m trying to play Garrysmod and before the Windows 8 update (Windows 7) was working fine, I tried downloading the update but it doesn’t allow me for some reason. Anyways when I check DXDIAG it says i’m running the latest directx 11 so I don’t know what wrong, I’ve looked and found same issues with nothing to fix them (recently)

Update your video card driver. Trust me.

Thanks a lot it appears as if when I switched to Windows 8 the video card driver program (Catalyst) was removed in the process and that is why I couldn’t update the Directx 11 and therefore couldn’t run garrysmod.