title: UWP authenticode signed appxbundle shows unknown publisher with smartscreen
body: <p>I have a signed <code>appxbundle</code> generated by Visual Studio and signed with a Comodo authenticode sha256 certificate. The bundle shows a digital signature tab when opening the properties. </p>
  
  <p>Now when I download the file on another PC, the <code>smartscreen</code> filter kicks in and says the <code>appxbundle</code> has an unknown publisher.</p>
  
  <p>I researched this issue but it seems there are only solutions for clickonce deployments.</p>
  
  <h3>Update</h3>
  
  <p>I have also performed the solutions mentioned <a href="https://robindotnet.wordpress.com/2013/02/24/windows-8-and-clickonce-the-definitive-answer-2/" rel="nofollow noreferrer">here</a>. In short: using post build or pre-publish signing to sign the <code>.exe</code> files generated in the obj folder. Both these solutions do not solve the problem.</p>
  
  <h3>Update</h3>
  
  <p>Included certificate screenshot to show that certificate is valid:</p>
  
  <p><a href="https://i.stack.imgur.com/OieNM.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/OieNM.png" alt="enter image description here"></a></p>
  
  <p>My question: What do I need to do extra to make the <code>appxbundle</code> appear with the correct publisher?</p>
  
  <h3>Update</h3>
  
  <p>I checked with Comodo and rechecked the certificate chain. The application sideloads properly now but the Smartscreen still does not recognize the publisher.</p>