Windows XP
To restore Windows XP Professional versions of Ntldr and Ntdetect.com on x86-based systems
1. Start Recovery Console by using the Windows XP Professional operating system CD.
Navigate to the system partition root and type the following commands from the Recovery Console prompt:
copy drive:\i386\ntldr
2. copy drive:\i386\ntdetect.com
In the preceding two commands, drive represents the letter of the CD-ROM that holds the Windows XP Professional installation files.
3. Answer the Overwrite system? (Yes/No/All): prompts by pressing Y.
4. Restart the computer.
Also;
This Windows boot disk can access a drive to work around the following boot problems:
Corrupted boot sector.
Corrupted master boot record (MBR).
Virus infections.
Missing or corrupt NTLDR or Ntdetect.com.
Incorrect Ntbootdd.sys driver.
This boot disk can also be used to boot from the shadow of a broken mirror, although you may need to change the Boot.ini file to do that.
This Windows boot disk cannot be used for the following problems:
Incorrect or corrupt device drivers that have been installed into the Windows System directory.
Boot problems that occur after the OSLOADER screen.
To work around or fix these problems, run the Emergency Repair disk, load the last known good control set, or reinstall Windows
http://support.microsoft.com/default...;en-us;Q311073
HOW TO: Edit the Boot.ini File in Windows XP
http://support.microsoft.com/defaul...b;en-us;Q289022
Computer Disk Hardware Configuration Problem
applies to:
Microsoft Windows XP 64-Bit Edition
Microsoft Windows XP Professional
Microsoft Windows XP Home Edition
http://support.microsoft.com/defaul...b;en-us;Q314477
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