Unable To Install ClickOnce Application

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Description:

The user will be trying to install a ClickOnce Application and will be getting a message like “Your security settings do not allow this application..”

To Resolve:

  1. Regedit – “HKLM\SOFTWARE\MICROSOFT.NETFramework\Security\TrustManager‌​\PromptingLevel\Inte‌​rnet” – Set to “Enabled”

This is caused by the “Click Once Trust Prompt Behavior”: https://msdn.microsoft.com/en-us/library/ee308453.aspx