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FIXMBR Command

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

fixmbr [device_name]

Parameter

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. An example of a device name is:

\Device\HardDisk0.

Example

The following example writes a new master boot record to the device specified:

fixmbr \Device\HardDisk0

Notes

If you do not specify a device_name, a new master boot record will be written to the boot device, which is the drive on which your primary system is loaded. 
If an invalid or nonstandard partition table signature is detected, you will be prompted whether you want to continue. If you are not having problems accessing your drives, you should not continue. Writing a new master boot record to your system partition could damage your partition tables and cause your partitions to become inaccessible