Unable to boot the computer Vista OEM

Steps tied so far.
Safe mode
Last known good config.
Boot in In buit Win RE
Start up repair.
System Restore.
Memory Diag
Any suggestions?

·         Get in to WINRE
·         Open command prompt
·         Enter the following commands to create a Manual System Restore to fix the issue.
C:
cd windows\system32\config
C:\windows\system32\config>ren default default.old
C:\windows\system32\config>ren sam sam.old
C:\windows\system32\config>ren security security.old
C:\windows\system32\config>ren software software.old
C:\windows\system32\config>ren system system.old
C:\windows\system32\config>cd regback
C:\windows\system32\config\regback>copy default c:\windows\system32\config
C:\windows\system32\config\regback>copy sam c:\windows\system32\config
C:\windows\system32\config\regback>copy security c:\windows\system32\config
C:\windows\system32\config\regback>copy software c:\windows\system32\config
C:\windows\system32\config\regback>copy system c:\windows\system32\config
Thanks .
Arun.

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Unable to boot the computer Vista OEM

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