Don't panic, it's nothing.

Just Do the following:

1- Download this "http://www.hirensbootcd.org/files/Hirens...D.15.1.zip".
2- Burn it on a 700MB CD, The burning .exe comes with the package.
3- Insert CD >> Boot from CDROM >> Use your arrow keys to find "Fix NTLDR is missing Problem in Windows XP"
4- Hit it, & when it's done restart & remove CD, & there you go, Your OS is alive Again, & full Of 1s&0s.