Complete the following steps to attempt restoration from a non corrupt registry.


  • POWER OFF your PC immediately.
  • Boot to external media of some sort (NOT your Windows installation) and navigate to the %SYSTEMROOT%\system32\config folder.
  • Backup the registry hives in this folder to a temporary location. The files are:
    1. SOFTWARE
    2. SYSTEM
    3. SAM
    4. SECURITY
    5. DEFAULT
  • Navigate to %SYSTEMROOT%\system32\config\RegBack as mentioned earlier.
  • Copy all registry hives from this folder (the same files as listed above) into the %SYSTEMROOT%\system32\config folder.
  • Reboot the PC.