Why Does the Computer Say NTLDR Is Missing?
A "NTLDR is missing" error message that appears when you start up your computer can indicate a serious problem, but it may mean there's a more straightforward problem that can be easily solved.
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Background
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NTLDR is a program loaded during startup of a Windows PC that triggers the loading of the operating system. The error indicates that Windows cannot start because the program cannot be found.
Causes
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This error can be triggered if you have an external device such as a USB hard drive or memory stick connected, and your computer is attempting to start (boot) from it. If a floppy disk is inserted, your computer may attempt to do the same. Disconnecting all USB devices, ejecting disks or cards and attempting to restart your PC should allow Windows to load.
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Considerations
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Another reason for the “NTLDR is missing error" is that the cable connecting the hard disk drive to the motherboard has become loose. A problem with the system BIOS, which checks the computer settings on start-up, could also be a reason. These settings can be checked by pressing a key, such as F1, while your computer starts up.
Troubleshooting
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Corruption of the operating system files may also cause the NTLDR error message. Solutions include copying system files from the Windows installation CD, performing a "repair install" or using the recovery console.
Warning
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Performing a repair install or replacing system files is potentially dangerous and can cause loss of data. It's essential to be confident of the procedure and have backups of your data before attempting these fixes.
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References
Resources
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