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It is a framework well known to many users of Windows – you change your PC, wait for Windows to boot … and all you get is a black screen with a "NTLDR Missing cryptic error. For most PC users who are not very computer-savvy, this is a scene of horror. They panic and resort to reinstall Windows altogether, or have to call technical support expensive. However, in reality, this error is not as bad as it seems, and in most cases, such situations can be resolved without drastic measures.

Consider the possible causes for NTLDR errors. First, What is NTLDR, and why you need it? "Missing" is an abbreviation for "NT bootloader", which is a small piece of software versions of Windows-based kernel NT, as NT, 2000, XP. It is designed to start a Windows system on a partition on the hard drive and usually resides on your main hard drive, the partition Main Windows. To work correctly, at least these two files must be present in your primary Windows partition:

  • NTLDR
  • boot.ini

As the first thing you do, you should check if the primary system partition Windows is available and contains these two files. This might seem easier said than done, since you probably can not start the PC in question now. However, there is a to help – today there are many 3rd party tools that can boot to restart your PC fully automatically from a CD and let you inspect your disk. We review a lot of them on our website mentioned below. Alternatively, if you do not have this tool in hand, using your installation CD original Windows is an option – you can start with a basic Windows and also to define its primary partition.

However, even before , you should check if your PC is really trying to boot from the correct partition. Often, some inadvertent change BIOS, or install a new HD, can result in the MBR (Master Boot Record) pointing to an incorrect location.

Another source of very basic mistakes NTLDR is when the hard disk system fails to operate properly. For example, a lack or a little loose IDE cable (the cable that is wide at the back of the HD) may well be the reason. If you have moved PC or recently installed new components, you should verify that the IDE cables are still firmly attached.

Some of the possible causes for the "Missing NTLDR "error can be really very simple:

  • Have your forgotten perhaps a CD or DVD in one of its units? If the boot priority in BIOS is set to boot from a CD / DVD first, which could be the source.
  • Have you changed anything in the BIOS recently? Try resetting it to the settings pattern. This can be done easily in any BIOS. Just watch out for the message of how to enter the BIOS at startup – usually Del or F8 pressing a button F10.
  • If the drive has power, IDE cable is connected, the BIOS and everything seems in order, you may need to restore NTLDR and file, either from a Windows CD or a third party tool.
  • Repair Windows using the Repair option of the system bootable CD of Windows, or with a tool commercial.

If all else fails, you may have a more serious problem, such as a hard drive failure or a faulty IDE cable. In case, you may not be able to get around reinstalling Windows.

Michael is a seasoned Windows system administrator and technician. He is currently on staff with Windows Recovery Toolbox, a Windows repair and recovery site.

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