Cowboy’s Weblog

http://support.microsoft.com/kb/307545

Brief version from above link

copy c:windowssystem32configsystem c:windowstmpsystem.bak

copy c:windowssystem32configsoftware c:windowstmpsoftware.bak

copy c:windowssystem32configsam c:windowstmpsam.bak

copy c:windowssystem32configsecurity c:windowstmpsecurity.bak

copy c:windowssystem32configdefault c:windowstmpdefault.bak

delete c:windowssystem32configsystem

delete c:windowssystem32configsoftware

delete c:windowssystem32configsam

delete c:windowssystem32configsecurity

delete c:windowssystem32configdefault

copy c:windowsrepairsystem c:windowssystem32configsystem

copy c:windowsrepairsoftware c:windowssystem32configsoftware

copy c:windowsrepairsam c:windowssystem32configsam

copy c:windowsrepairsecurity c:windowssystem32configsecurity

copy c:windowsrepairdefault c:windowssystem32configdefault

1. The following path is an example of a folder path to the Snapshot folder:
   C:System Volume Information_restore{D86480E3-73EF-47BC-A0EB-A81BE6EE3ED8}RP1Snapshot
2. From the Snapshot folder, copy the following files to the C:WindowsTmp folder:
   • _REGISTRY_USER_.DEFAULT
   • _REGISTRY_MACHINE_SECURITY
   • _REGISTRY_MACHINE_SOFTWARE
   • _REGISTRY_MACHINE_SYSTEM
   • _REGISTRY_MACHINE_SAM
3. Rename the files in the C:WindowsTmp folder as follows:
   • Rename _REGISTRY_USER_.DEFAULT to DEFAULT
   • Rename _REGISTRY_MACHINE_SECURITY to SECURITY
   • Rename _REGISTRY_MACHINE_SOFTWARE to SOFTWARE
   • Rename _REGISTRY_MACHINE_SYSTEM to SYSTEM
   • Rename _REGISTRY_MACHINE_SAM to SAMdel c:windowssystem32configsam
   • 
     del c:windowssystem32configsecuritydel c:windowssystem32configsoftware

     del c:windowssystem32configdefault

     del c:windowssystem32configsystem

     copy c:windowstmpsoftware c:windowssystem32configsoftware

     copy c:windowstmpsystem c:windowssystem32configsystem

     copy c:windowstmpsam c:windowssystem32configsam

     copy c:windowstmpsecurity c:windowssystem32configsecurity

     copy c:windowstmpdefault c:windowssystem32configdefault