title: Q: Does VS2015 Community Update 3 compile Windows UWP Apps for Win10 Build 10586 on Win7SP1?
body: <p>I have a PC with Windows 7 SP1 (64bit) that I have been using to build a Windows store app.  I've been using Visual Studio 2015 Community Edition Update 2.  This worked great until I applied Visual Studio Update 3 and the latest Windows SDK (14393).</p>
  
  <p>When I target the previous release (10586), I get the following error when I try to compile a C# project:</p>
  
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  <p><em>Program Files (x86)\MSBuild\Microsoft\VisualStudio\v14.0\AppxPackage\Microsoft.AppXPackage.Targets(2151,5): error APPX0002: Task 'GenerateAppxPackageRecipe' failed. 0x7F - Failed to load MRM support library.</em></p>
  
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  <p>(I have a C++ UWP project in the same solution and it compiles into a DLL without any issues.)</p>
  
  <p>I've tried reinstalling VS2015 Update 2, reinstalling VS2015 Update 3, repairing Visual Studio, repairing the Windows SDK for 10586.  None of these worked.</p>
  
  <p>I know the latest Windows 10 SDK does not support Windows 7 SP1; however, does this apply to <strong><em>all previous</em></strong> Windows 10 SDK's?</p>