Solved: missing or corrupted of Windows\System32\Config

If you get the error as below:

Step:
1) Insert the Windows XP bootable CD into the computer. When prompted to press any key to boot from the CD, press any key.
2) Once in the Windows XP setup menu press the "R" key to repair Windows.
3) Log into your Windows installation by pressing the "1" key and pressing enter.
4) You will then be prompted for your administrator password, enter that password. Or else may just leave blank.
5) Go to this directory: 
cd \windows\system32\config


6) Be safe, we change the file extension of original system file, before we fix the error
ren system system.bad

7) In the below example we are copying these files from the \windows\repair\ directory, as below:
copy \windows\repair\system c:\windows\system32\config\system

8) Once both of these files have been successfully copied, remove the CD from the computer and reboot.
9) Restart the computer, Problem is solved.

What if you have other system file corrupted,
you may also follow this steps to fix your problem.

Example:
software system file :-
copy \windows\repair\software c:\windows\system32\config\software
sam system file :-
copy \windows\repair\sam c:\windows\system32\config\sam
security system file :-
copy \windows\repair\security c:\windows\system32\config\security
default system file :-
copy \windows\repair\default c:\windows\system32\config\default

Good Luck to everyone. ^-^