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Impossible d'installer ClickOnce Application due to Security Paramètres (Windows 10)

ayi

When attempting to install a Microsoft-signed ClickOnce application, an error appears stating "Your administrator has blocked this application because it potentially poses a security risk to your computer" and "Your security settings do not allow this application to be installed on your computer".

As the administrator who would have set said policies, I cannot for the life of me figure out why this is being blocked for just one user and not other users whose PCs are based off the same image and why ça fonctionne for other users who should be enjoying the same privileges as the user who is receiving le message suivant. Notez que the exact same domain group policies are applied to this user that is experiencing the error and to users who are not receiving the error.

Even attempting to run the application "as an administrator" does not solve the issue. The event logs show no errors, and I cannot otherwise find any logs to help diagnose the issue.

What local policies or settings would allow or deny this application?

ayi

This is caused by the "ClickOnce Trust Prompt Behavior": https://msdn.microsoft.com/en-us/library/ee308453.aspx

To adjust this, simply change the values in the Registry and vous devriez be able to install the application.

To enable the ClickOnce trust prompt by using le registre editor Open
le registre editor:

Click Start, and puis cliquez sur Run.

In the Open box, type regedit, and then cliquez sur OK.

Trouvez le following registry key:

\HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT.NETFramework\Security\TrustManager\PromptingLevel

If the key does not exist, create it.

Add the following subkeys as String Value, if they do not already
exist, with the associated values shown in the following table.

On my computer, the values were set to "Disabled" and J'ai no clue which application did that. J'ai changé the values to default and now everything works again like it should.

Or vous pouvez just delete the key "TrustManager" itself and everything is working aussi.