CORRUPTED OR MISSING \WINDOWS\SYSTEM32\CONFIG

If you got this error:
This error is due to file missing or corrupt\WINDOWS\SYSTEM32\CONFIG\SYSTEM or \WINDOWS\SYSTEM32\CONFIG\SOFTWARE

1. Insert and boot from your Windows XP CD.
   At the first R=Repair option, press the R key
2. Press the number that corresponds to the correct location for the installation of Windows you want to repair.Typically this will be #1
3. Enter in the administrator password when requested
   cd \windows\system32\config
4. Depending on which section was corrupted:ren software software.bad or ren system system.bad
5. Depending on which section was corruptedcopy \windows\repair\systemcopy \windows\repair\software
6. Take out the CD ROM and type exit