title: Chocolatey returns errors when installing openvpn
body: <p>As the title describes, <code>choco install openvpn</code> returns the below error;</p>
  
  <pre><code>ERROR: Unable to import PGP key 'C:\ProgramData\chocolatey\lib\openvpn\tools\openvpn_public_key.asc' in the temporary keyring (C:\ProgramData\chocolatey\lib\openvpn\tools\e090a0df-7709-xxxx-xxxx-xxxxxxxxxxxx\pubring.gpg).
  The install of openvpn was NOT successful.
  Error while running 'C:\ProgramData\chocolatey\lib\openvpn\tools\chocolateyInstall.ps1'.
   See log for details.
  
  
  Failures
   - openvpn (exited -1) - Error while running 'C:\ProgramData\chocolatey\lib\openvpn\tools\chocolateyInstall.ps1'.
   See log for details.
  </code></pre>
  
  <p>I am using a <code>Windows 10, v1803</code> machine.</p>
  
  <p>Below is the part of the log that shows the complete traced error;</p>
  
  <pre><code>[DEBUG] - Attempting to delete file "C:\ProgramData\chocolatey\.chocolatey\openvpn.2.4.7\.arguments".
  [DEBUG] - Attempting to delete file "C:\ProgramData\chocolatey\.chocolatey\openvpn.2.4.7\.extra".
  [DEBUG] - Attempting to delete file "C:\ProgramData\chocolatey\.chocolatey\openvpn.2.4.7\.version".
  [DEBUG] - Attempting to delete file "C:\ProgramData\chocolatey\.chocolatey\openvpn.2.4.7\.sxs".
  [DEBUG] - Attempting to delete file "C:\ProgramData\chocolatey\.chocolatey\openvpn.2.4.7\.pin".
  [DEBUG] - Attempting to delete directory "C:\ProgramData\chocolatey\lib-bad\openvpn".
  [DEBUG] - Sending message 'HandlePackageResultCompletedMessage' out if there are subscribers...
  [ERROR] - The install of openvpn was NOT successful.
  [ERROR] - Error while running 'C:\ProgramData\chocolatey\lib\openvpn\tools\chocolateyInstall.ps1'.
   See log for details.
  [DEBUG] - Moving 'C:\ProgramData\chocolatey\lib\openvpn'
   to 'C:\ProgramData\chocolatey\lib-bad\openvpn'
  [DEBUG] - Attempting to delete file "C:\Users\XXX\AppData\Local\NuGet\Cache\openvpn.2.4.7.nupkg".
  [WARN ] - 
  Chocolatey installed 0/1 packages. 1 packages failed.
   See the log for details (C:\ProgramData\chocolatey\logs\chocolatey.log).
  [INFO ] - 
  [ERROR] - Failures
  [ERROR] -  - openvpn (exited -1) - Error while running 'C:\ProgramData\chocolatey\lib\openvpn\tools\chocolateyInstall.ps1'.
   See log for details.
  [DEBUG] - Sending message 'PostRunMessage' out if there are subscribers...
  [DEBUG] - Exiting with -1
  </code></pre>