JSI Tip 1583. What is the HKLM\System\Clone sub-key?

When you use Regedt32 to double click:


you will note a Clone subkey that is not accessable.

The Clone subkey is built during system startup and contains a temporary copy of the control set that is being used to start the computer. When Winlogon reports that the startup was successful, the Clone subkey becomes the LastKnownGood control set.

Hide comments


  • Allowed HTML tags: <em> <strong> <blockquote> <br> <p>

Plain text

  • No HTML tags allowed.
  • Web page addresses and e-mail addresses turn into links automatically.
  • Lines and paragraphs break automatically.