Have you deleted a dualboot or restored a operating system? ntldr boot problems http://www.pro-networks.org/forum/about97198.html http://www.pronetworks.org/forum/viewtopic.php?t=84455 http://www.computerhope.com/issues/ch000465.htm the only time I have seen this is when I dual-boot my computers. If you don't have a dual-boot going, you can try doing a chkdsk c: /f. If the ntldr is corrupted chkdsk will fix that and get your computer to boot again.
