dayzLauncher.exe - bad image

  • everything was working fine yesterday, I downloaded arma 3 from steam last night and now nothing is working. I get a bad image error saying
    C:\Windows\Microsoft.NET\Framework\v4.0.30319\WPF\PresentationNative_v0400.dll is either not designed to run on windows or it contains an error..........Error status 0xc000012f.
    Any idea whats going on and how I can fix it?