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

Jerold Schulman

August 27, 1999

1 Min Read
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When you use Regedt32 to double click:

HKEY_LOCAL_MACHINESystem

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.

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Jerold Schulman

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