title: How to created a UWP app with a certificate that can be sideloaded
body: <p>I am trying to create a UWP app that can be sideloaded onto other PCs. 
  My main question is: Do I need a certificate from a trusted source to sign my application? </p>
  
  <p>After a lot of poking around, I learned that you can sideload/install UWP applications through the application <a href="https://www.microsoft.com/en-ca/store/p/app-installer/9nblggh4nns1" rel="noreferrer">App Installer</a> from the Windows Store. After installing the App Installer, one can install UWP apps by double clicking on the <code>.appxbundle</code> file. (Not using the <code>.ps1</code> file, as indicated <a href="https://stackoverflow.com/questions/38971791/uwps-add-devapppackage-powershell-script-checks-for-a-developer-licence-this">here</a>)</p>
  
  <p>Before doing this, I would need to trust the certificate. I've created this certificate through Visual Studio. It was created by double clicking the <code>.appxmanifest</code> going to <code>Packaging</code>, selecting <code>Choose Certificate</code> -> <code>Configure Cerfiticate</code> and then <code>Create test certificate</code>. </p>
  
  <p>I tried to install my application on two different Windows 10 machines. On one machine, the application would fail by saying that the package might conflict with another package or depends on things that aren't installed (something that isn't true) and on the other machine it would give a certificate error (even though I trusted and added the certificate to my root trusted certificates). </p>
  
  <p>Do I need a certificate released by a trusted authority to get this to work? I was under the impression that my certificate should work, as long as the user trusted it, but the app doesn't seem to install. </p>
  
  <p>Also, if I do need a trusted certificate, how do I create this <code>pfx</code> file? And where do I get it from? The Microsoft documentation doesn't seem to mention anything. </p>