title: How to install Windows8 App on a test Tablet (i.e. not the developer machine); error about signature being corrupt
body: <p>I've been working on a C# application that will end up on the App store to run on Windows 8.1 Tablets.</p>
  
  <p>Target Platform Version : Windows 8.1<br>
  Output type: "Windows Store App"</p>
  
  <p>I can run the app in the IDE, "Visual Studio Express 2013 for Windows", and I can "Create App Package"</p>
  
  <p>I'm selecting "NO" when asked if I want to upload to the Store, and it produces a </p>
  
  <pre><code>X.Win8_1.0.0.0_Debug_Test\Add-AppDevPackage.ps1
  X.Win8_1.0.0.0_Debug_Test\...etc
  X.Win8_1.0.0.0_AnyCPU_bundle_Debug.appxupload
  </code></pre>
  
  <p>I can run the .ps1 file on my dev machine, and it installs the cert and application fine.</p>
  
  <p>If I copy these files to the test-tablet (Hewlett-Packard  Business-Notebook Intel Atom), then it wont install it since.. </p>
  
  <pre><code>"the package or bundle is not digitally signed or its signature is corrupted"
  </code></pre>
  
  <p>The steps I've followed are.. <a href="http://blogs.msdn.com/b/patricka/archive/2012/11/05/how-do-i-deploy-a-windows-8-app-to-another-device-for-testing.aspx" rel="nofollow">How to deploy app</a></p>
  
  <p>So my question is...</p>
  
  <p>What am I doing wrong? Why do I get the message about the signature, is what I'm trying impossible?</p>
  
  <p>Note: The Architecture selected is "Neutral"</p>
  
  <hr>
  
  <p>I've looked in the registry of the tablet devices for the following.</p>
  
  <p>Use RegEdit to navigate to the key: HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\Appx<br>
  Set AllowAllTrustedApps (REG_DWORD) to the value of 1</p>
  
  <p>I don't have the entry for "Appx" in my registry.
  Just...<br>
  CurrentVersion<br>
  EnhancedStorageDevices<br>
  IPSec<br>
  Network Connections<br>
  NetworkConnectivityStatsIndicator<br>
  safer<br>
  System<br>
  WcmSvc<br>
  WSDAPI<br></p>
  
  <hr>
  
  <p>AHH! </p>
  
  <p>It looks like the tablet is Windows8 and the app is Windows 8.1!</p>
  
  <p>Could this be my woe!?!?!?</p>