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Repairing Corrupted NTLDR.EXE and NTDETECT.COM

Corrupt NTLDR.EXE and/or NTDETECT.COM file


Related errors:

Below are the full error messages that may be seen when the computer is booting.

NTLDR is Missing
Press any key to restart

Boot: Couldn't find NTLDR
Please insert another disk

NTLDR is missing
Press Ctrl Alt Del to Restart


To repair this error follow the instruction below:



Windows 2000 users


If your computer is using Microsoft Windows 2000 and you are encountering the NTLDR error. Create the below boot.ini file on the floppy diskette drive.

[boot loader]
timeout=30
default=multi(0)disk(0)rdisk(0)partition(1)\WINNT
[operating systems]
multi(0)disk(0)rdisk(0)partition(1)\WINNT="Microsoft Windows 2000 Professional" /fastdetect

Copy the NTLDR and NTDETECT.COM files from another computer using the same operating system. Both of these files are located in the root directory of the primary hard disk drive. For example, C:\NTLDR and C:\NTDETECT.COM should be the locations of these files on many computers.

Once these files have been copied to a floppy diskette reboot the computer and copy the NTLDR and NTDETECT.COM files to the root directory of the primary hard disk drive. Below is an example of what commonly should be performed from the A:\> drive.

copy ntldr c:
copy ntdetect.com c:

After the above two files have been copied, remove the floppy diskette and reboot the computer.



Windows XP, 2003 Server and 2008 Server users

   1. Insert the Windows XP bootable CD into the computer.
   2. When prompted to press any key to boot from the CD, press any key.
   3. Once in the Windows XP setup menu press the "R" key to repair Windows.
   4. Log into your Windows installation by pressing the "1" key and pressing enter.
   5. You will then be prompted for your administrator password, enter that password.
   6. Copy the below two files to the root directory of the primary hard disk. In the below example we are copying these files from the CD-ROM drive letter, which in this case is "e." This letter may be different on your computer.

      copy e:\i386\ntldr c:\
      copy e:\i386\ntdetect.com c:\

   7. Once both of these files have been successfully copied, remove the CD from the computer and reboot.

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