Sous W2K en bootant a partir du cdrom d'install, reparation, puis en se cassant ->
FIXMBR
fixmbr device name
Repairs the master boot record (MBR) of the system partition. This is used in scenarios where a virus has damaged the MBR and Windows 2000 cannot start.
WARNING: This command has the potential to damage your partition tables if a virus is present or a hardware problem exists. This command may lead to inaccessible partitions. Microsoft suggests running antivirus software before using this command.
where device name is an optional device name that specifies the device that needs a new MBR. The name can be obtained from the output of the map command. If this is left blank, the boot device's MBR is fixed. For example:
fixmbr \device\harddisk2
If Fixmbr detects an invalid or non-standard partition table signature, it prompts you for permission before rewriting the MBR.