Windows NT /2000/XP or Windows server comes with NTFS partition. However some time you are not able to boot from Windows XP/2003 NTFS boot partition due to some reasons such as corrupted MBR or Linux installation problem.
You need to use FIXMBR to fix the master boot record (MBR) on Windows NTFS partition. However, the fixmbr command is only available when you are using the Recovery Console.
Procedure
a) Set BIOS to boot from CD/DVD
b) Inset your Windows setup CD
c) When prompted select Recovery Console option
d) Now go to C:\WINNT or C:\WINDOWS
e) Next type following command:
fixmbr \Device\HardDisk0
f) But how did I obtained the device \Device\HardDisk0 name? The device (drive) on which you want to write a new master boot record can be obtained from the output of the map command. Type following command:
map
fixmbr \Device\HardDisk0
g) Type exit to restart system
exit
h) Remove CD and boot from hard disk.