\WINDOWS\SYSTEM32\CONFIG missed or corrupted

if you get this messagge at boot of your windows, have a chance to save the system.

• First you need your windows xp cd rom, boot the machine with it (be sure your BIOS can boot from cd).
• Start a new installation until the setup ask you to press F8 for accept the Eula
• Now setup can discover your windows installed, at the option press R
• Type 1 for identify your damaged windows, and type your administrator password if you have one.
• Now you see the prompt, well write:
  C: ←
  CD Windows ←
• now you are into your hard disk, inside windows directory, well we must rename the dir, type:
  rename system system.corrupted ←
  copy \windows\repair\system ←
• extract your cd rom, and type: exit