Using the Recovery Console to Replace the MBR You can use the fixmbr command in Recovery Console to rewrite the MBR to resolve a corrupted MBR on a startup disk. However, running fixmbr overwrites only the master boot code, leaving the existing partition table intact. If the corruption in the MBR affects the partition table, running fixmbr might not resolve the problem.
Caution Use this command with care because it can damage your partition table if any of the following apply:
* A virus is present and a third-party operating system is installed on the same computer.
* A nonstandard MBR is installed by a third-party disk utility.
* A hardware problem exists.
Caution Run antivirus software before you use the fixmbr command.