fixmbr command.

ABOUT FIXMBR

The fixmbr command is a recovery console command that creates a new boot record. 

AVAILABILITY
The fixmbr command is a recovery console command that is available in the below Microsoft Operating Systems.

Windows 2000
Windows XP 

SYNTAX

Repairs the master boot record of the boot disk. The fixmbr command is only available when you are using the Recovery Console

fixboot [device_name]

device_name = The device (drive) on which you want to write a new master boot record. The name can be obtained from the output of the map command. 

EXAMPLES

\Device\HardDisk0

In the above example the boot record would be re-written for the first disk drive.