RegistryKey GetValue return null C#
<pre><code>byte[] digitalProductId = 
RegistryKey.OpenBaseKey(RegistryHive.LocalMachine, RegistryView.Default)
           .OpenSubKey(@"SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\", false)
           .GetValue("DigitalProductId", null, RegistryValueOptions.None) 
 as byte[]; 
</code></pre>

<p>I need get digitalProductId, but this return null</p>
