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Computer Tips and Tricks - NTLDR or NTDETECT.COM Not Found or Missing Error Message

 By Avonsys - www.avonsys.com

Wednesday, May 12, 2010 at 6:10pm

This problem is very common to many end users. If you get an error saying the NTLDR is not found during boot up there can be a number of causes. People automatically think this in error that cannot be fixed. Sometimes this is true, however most times it can be solved. Firstly it is important to check where your computer is booting from. If it is trying to boot from the cd rom and not the hard drive, of course the file would be missing. If this is the case you should change your boot sequence in the bios.

This message also comes up if we leave our external hard drive connected to the computer. This means that it is booting up from the external drive. Unplug the external drive and reboot your PC. You need to dig into BIOS and change the boot settings. Another rumor is that this error message comes up when you use a copied version of Windows.
If it is definitely trying to boot C: drive then try the following steps below.

For FAT32

If you have FAT32 partitions, it is much simpler than with NTFS.
Just boot with a Win98 floppy and copy the NTLDR or NTDETECT.COM files
from the i386 directory to the root of the C:\ drive.

For NTFS:


  1. Insert and boot from your WindowsXP CD.
  2. At the first R=Repair option, press the R key
  3. Press the number that corresponds to the correct location for the installation of Windows you want to repair.(Typically this will be No: 1)
  4. Enter in the administrator password when requested
  5. Enter in the following commands (X: is replaced by the actual drive letter that is assigned to the CD ROM drive.
    1. COPY X:\i386\NTLDR C\:
    2. COPY X:\i386\NTDETECT.COM C:\
  6. Take out the CD ROM and type exit

Another way is to put your hard drive into and external drive and copy the file from the CD that way.
Another word of advice is to keep your anti-virus software up to date, some viruses are known to delete the associated files resulting in this error.

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