title: _winreg.SaveKey Error - A required privilege is not held by the client
body: <p>I want to save the registry key "Run" using _winreg in Python.
  This is my code:</p>
  
  <pre><code>import _winreg
  key = _winreg.OpenKey(_winreg.HKEY_LOCAL_MACHINE, r'Software\Microsoft\Windows\CurrentVersion\Run')
  _winreg.SaveKey(key, "C:\key.reg")
  </code></pre>
  
  <p>When executing, I get a Windows error message: "A required privilege is not held by the client"</p>
  
  <p>Can anyone see what is wrong?</p>