“Unknown Error” when launching Visual Studio 2017 Community after installation


I am getting an "Unknown Error" (shown below) alert when I try to launch Visual Studio 2017 Community after successful installation.

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UPDATE: After Force uninstall & reinstallation

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Answers:


remove this folder (or similar):

%LocalAppData%\Microsoft\VisualStudio\15.0_db2a872f

  • folder name 15.0_db2a872f could be different in your machine eg. 15.0_XXXXXXX
  • found in the vs startup log that processing of Progression_NativePackage_Component_x86.pkgdef bailed out, indicating an inconsistent extension installation