Booting_error

If your working system get crashed with blue screen with showing following any message or error :

Windows could not start because the following file is missing or corrupt:
\\WINDOWS\\SYSTEM32\\CONFIG\\SYSTEM
----------------------------

Windows NT could not start because the below file is missing or corrupt:
X:\\WINNT\\System32\\Ntoskrnl.exe
----------------------------

Windows NT could not start because the below file is missing or corrupt:
X:\\WINNT\\System32\\HAL.dll
---------------------------

NTLDR is Missing
Press any key to restart
--------------------------

Invalid boot.ini
Press any key to restart
---------------------------------


The possible causes for these errors are ..

• Windows Hardware Abstraction Layer (HAL)
• Corrupt registry hives (\\WINDOWS\\SYSTEM32\\CONFIG\\xxxxxx)
• Invalid BOOT.INI files
• A corrupt NTOSKRNL.EXE
• A missing NT Loader (NTLDR)

To solve this problem, first get the bootable operating system and boot the system.
Go upto the repair mode by selecting 'PRESS R to repair' . After that you have to type following some commands.. it will fix your system for booting error.

These commands are as follows:

• C: CD ..
• C: ATTRIB -H C:\\boot.ini
• C:ATTRIB -S C:\\boot.ini
• C:ATRIB -R C:\\boot.ini
• C: del boot.ini
• C: BOOTCFG /Rebuild
• C: CHKDSK /R /F
• C: FIXBOOT
• Exit
  

when you type bootcfg /Rebuild, system prompt for y/n. Press Y. After that gave your operating system name (without any single quotation)eg. 'Windows XP' or 'Windows Server 2003, Standard'. After that, for next line type (without any single quotation) ' /noexecute=optout /fastdetect '.

By sinply following these steps, you will get the system back.
For more detail information check this link...
http://icrontic.com/articles/repair_windows_xp/2