Proper noun
NTLDR
(computing) The boot loader for Windows NT.
If system files that are needed at boot time (such as drivers, NTLDR, winload. Source: Internet
It has a simple command line interface, used to check and repair the hard drive(s), repair boot information (including NTLDR ), replace corrupted system files with fresh copies from the CD, or enable/disable services and drivers for the next boot. Source: Internet