LOG File from Arma 3 below in Additional Info.
Was working, not played for a while then this occurred fails to launch (neither does Elite and Dangerous)
Is it a Microsoft update ???
Running Win10 (because I have to)
I have reloaded ARMA3 twice, from Steam Account, tried a few online fix suggestions.
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!
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System information
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Date: 2016-08-08 09:26:15 / 2016-08-08 19:26:15 +10
Current dir: D:\Software Installed\Steam\steamapps\common\Arma 3
AppData dir: C:\Users\Neil_2\AppData\Local
Command line: "D:\Software Installed\Steam\steamapps\common\Arma 3\arma3launcher.exe"
Version: 1.5.137.506
CLR version: 4.0.30319.42000
OS Version: 10.0.10586.0 (Microsoft Windows NT 10.0.10586.0)
OS 64 bit: True
Process 64 bit: False
Personal dir: C:\Users\Neil_2\Documents
Culture: en-US
UI Culture: en-US
Point of log: Unhandled Exception
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Exception
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System.IO.FileNotFoundException: Could not load file or assembly 'System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' or one of its dependencies. The system cannot find the file specified.
File name: 'System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'
at Launcher.Program.RunLauncher()
at Launcher.Program.Main(String[] args)
WRN: Assembly binding logging is turned OFF.
To enable assembly bind failure logging, set the registry value [HKLM\Software\Microsoft\Fusion!EnableLog] (DWORD) to 1.
Note: There is some performance penalty associated with assembly bind failure logging.
To turn this feature off, remove the registry value [HKLM\Software\Microsoft\Fusion!EnableLog].
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Modules and assemblies
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- mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089; C:\Windows\Microsoft.NET\Framework\v4.0.30319\mscorlib.dll
- arma3launcher, Version=1.5.137.506, Culture=neutral, PublicKeyToken=null; D:\Software Installed\Steam\steamapps\common\Arma 3\arma3launcher.exe
- log4net, Version=1.2.13.0, Culture=neutral, PublicKeyToken=669e0ddf0bb1aa2a; D:\Software Installed\Steam\steamapps\common\Arma 3\Launcher\log4net.dll
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Assembly resolution
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Resolving System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
requested by: unknown
not resolvedHello,
you're missing a file that is part of Microsoft .NET Framework (or that file is corrupted). That file is necessary for Launcher to run. Please try to re-install .NET Framework 4.6.2: https://www.microsoft.com/en-us/download/details.aspx?id=53344