If your system does not start, and neither safe mode nor the recovery console has helped, you can try using the emergency repair disk option in backup. if you have prepared an erd beforehand, you can use it to repair system files (after you start the system using the windows 2000 setup cd or setup floppy disks). if your system does not start, and neither safe mode nor the recovery console has helped, you can try using the emergency repair disk option in backup. if you have prepared an erd beforehand, you can use it to repair system files (after you start the system using the windows 2000 setup cd or setup floppy disks). the erd can make only basic system repairs, such as to the system files, the boot sector, and the startup environment. the erd does not back up data or programs, and it is not a replacement for regular system backups.