When you attempt to boot Windows XP in a dual-boot configuration, the following error will come:

* Windows XP could not start because the following files were absent or corrupted: WINDOWS\SYSTEM32\CONFIG\SYSTEM NTLDR MISSING You can try to repair this file by starting Windows setup from original floppies or boot from CD-ROM.
Select 'r' at first screen to repair

Oorzaak:

This query can happen if you are dual booting Microsoft Windows NT 4.0 and Windows XP and install Windows NT 4.0 after you reinstall Windows XP or Windows NT 4.0 is installed. Windows NT 4.0 does not identify the extra startup features of Windows XP and swap the common Windows boot files.

Oplossing:

Follow these steps to determine this behavior; swap the Windows XP Ntldr

• First Start the Recovery Console, type fix boot at the command prompt and press ENTER.
• If the Recovery Console does not show, follow these steps:
o Use one of the following methods to start the PC so that you can gain access to the file system of the boot partition:
* Specify another operating system on the Boot menu.
* Start from the Windows XP CD-ROM, and then at the Windows Setup screen, press R to use the Recovery Console to repair the Windows installation.
* Use a Windows NT 4.0 boot disk that also contains the Windows XP boot files.
* If your boot partition is a basic disk that is formatted with the FAT file system, use an MS-DOS boot disk.
* Copy the Ntldr and Ntdetect.com files from the I386 folder on the Windows XP CD-ROM to the root folder of your boot drive (usually drive C).