1. Start Arma 3 ( standard is launcher) from steam
2. get error.

Arma 3 Launcher Exception Log

Arma 3 Launcher has encountered an unexpected error described below.
Sorry for the inconvenience.
Please report this on Arma 3 Feedback Tracker (http://feedback.arma3.com). Thanks to you we may fix the issue faster!

System information

Date: 2017-12-12 10:09:11 / 2017-12-12 11:09:11 +01
Current dir: I:\SteamLibrary\steamapps\common\Arma 3
AppData dir: C:\Users\Ägaren\AppData\Local
Command line: "I:\SteamLibrary\steamapps\common\Arma 3\arma3launcher.exe"
Version: 1.5.143.717
CLR version: 4.0.30319.42000
OS Version: 6.1.7601.65536 (Microsoft Windows NT 6.1.7601 Service Pack 1)
OS 64 bit: True
Process 64 bit: False
Personal dir: C:\Users\Ägaren\Documents
Culture: sv-SE
UI Culture: sv-SE
Point of log: Unhandled Exception

Exception

System.TypeInitializationException: Typinitieraren för <Module> utlöste ett undantag. ---> <CrtImplementationDetails>.ModuleLoadException: The C++ module failed to load during appdomain initialization.
---> System.DllNotFoundException: C:\Windows\Microsoft.NET\Framework\v4.0.30319\WPF\wpfgfx_v0400.dll ---> System.ComponentModel.Win32Exception: %1 är inte ett giltigt Win32-program

• Slut på stackspårning för interna undantag --- vid MS.Internal.NativeWPFDLLLoader.LoadNativeWPFDLL(UInt16* relDllPath, UInt16* baseDllPath) vid MS.Internal.NativeWPFDLLLoader.LoadCommonDLLsAndDwrite() vid CModuleInitialize.{ctor}(CModuleInitialize* , IntPtr cleaningUpFunc) vid ?A0x721f77f1.CreateCModuleInitialize() vid ?A0x721f77f1.??__E?A0x721f77f1@cmiStartupRunner@@YMXXZ() vid _initterm_m((fnptr)* pfbegin, (fnptr)* pfend) vid <CrtImplementationDetails>.LanguageSupport.InitializePerAppDomain(LanguageSupport* ) vid <CrtImplementationDetails>.LanguageSupport._Initialize(LanguageSupport* ) vid <CrtImplementationDetails>.LanguageSupport.Initialize(LanguageSupport* )
• Slut på stackspårning för interna undantag --- vid <CrtImplementationDetails>.LanguageSupport.Initialize(LanguageSupport* ) vid .cctor()
• Slut på stackspårning för interna undantag --- vid Launcher.Program.StartGui(InitArgs param) vid Launcher.Program.HandleCommandLine() vid Launcher.Program.RunLauncher() vid Launcher.Program.Main(String[] args)

Modules and assemblies

• mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089; C:\Windows\Microsoft.NET\Framework\v4.0.30319\mscorlib.dll
• arma3launcher, Version=1.5.143.717, Culture=neutral, PublicKeyToken=null; I:\SteamLibrary\steamapps\common\Arma 3\arma3launcher.exe
• log4net, Version=1.2.13.0, Culture=neutral, PublicKeyToken=669e0ddf0bb1aa2a; I:\SteamLibrary\steamapps\common\Arma 3\Launcher\log4net.dll
• System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089; C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System\v4.0_4.0.0.0__b77a5c561934e089\System.dll
• System.Configuration, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a; C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Configuration\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Configuration.dll
• System.Core, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089; C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Core\v4.0_4.0.0.0__b77a5c561934e089\System.Core.dll
• System.Xml, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089; C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Xml\v4.0_4.0.0.0__b77a5c561934e089\System.Xml.dll
• SharedResources, Version=1.5.143.717, Culture=neutral, PublicKeyToken=null; I:\SteamLibrary\steamapps\common\Arma 3\Launcher\SharedResources.dll
• PresentationFramework, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35; C:\Windows\Microsoft.Net\assembly\GAC_MSIL\PresentationFramework\v4.0_4.0.0.0__31bf3856ad364e35\PresentationFramework.dll
• WindowsBase, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35; C:\Windows\Microsoft.Net\assembly\GAC_MSIL\WindowsBase\v4.0_4.0.0.0__31bf3856ad364e35\WindowsBase.dll
• PresentationCore, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35; C:\Windows\Microsoft.Net\assembly\GAC_32\PresentationCore\v4.0_4.0.0.0__31bf3856ad364e35\PresentationCore.dll
• System.Xaml, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089; C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Xaml\v4.0_4.0.0.0__b77a5c561934e089\System.Xaml.dll
• mscorlib.resources, Version=4.0.0.0, Culture=sv, PublicKeyToken=b77a5c561934e089; C:\Windows\Microsoft.Net\assembly\GAC_MSIL\mscorlib.resources\v4.0_4.0.0.0_sv_b77a5c561934e089\mscorlib.resources.dll

Assembly resolution