MBRWiz is a command line tool designed to directly modify the MBR, with the capability to set partitions active for booting, delete or hide partitions, back up and restore copies of the MBR, as well as sort the partition entries.

There are two versions:

• a 32 bit version (MBRWiz.exe) for Windows XP/2K/PE,
• a 16 bit executable (MBRWizD.exe) for DOS and Win9x,
• a version for Linux.

  Available Command Line Options
  /List	Display the partitions listed in the MBR, their order in the MBR, partition type, and whether active or hidden. The DskPos field indicates the order the partitions are laid out on disk, while MBR Pos shows them as they're listed in the MBR record.
  /Sort	It isn’t uncommon for the partition entries in the MBR to be unsorted, meaning that their order in the MBR doesn’t match the order on disk. This normally wasn’t a problem until Windows NT/2K/XP came along with its new boot loader, and the requirement that the boot.ini point to the actual partition number. This option will sort the entries to match their order on disk.
  /IsSorted	Returns an ErrorLevel code based on the status of the partition entries: 0 = Sorted 1 = Not Sorted
  /Disk=#	Selects the disk to use for all operations. This switch is always processed first, verifying that all operations specified on the command line will use the disk specified here. If not specified, Disk 0 will be used by default. All operations use the physical location of the partition on the disk (the first column in /list), while the MBRPos simply identifies the current position of the partition entry in the MBR.
  /Active=#	Sets the partition specified by # active for booting. If the partition is hidden it will unhide it before setting it active. No other partitions will be hidden, or otherwise changed by this command. DOS and Win9x do not properly recognize multiple visible primary partitions, so make certain you also hide remaining primary partitions if necessary.
  /InActive=#	Sets the partition specified by # in-active, therefore it will no longer be bootable. This will not automatically set another partition active
  /Hide=#	Hides the partition number specified by #. An entry of * (asterisk) will cause all partitions to be hidden
  /Unhide=#	Un-Hides the partition number specified by # An entry of * (asterisk) will cause all partitions to be unhidden.
  /Del=#	Deletes the partition specified by #.
  /Wipe=#	Selecting an option of 1 will wipe the MBR clean, effectively removing all information from the first sector of the disk. An option of 2 will remove all information from the first (hidden) 63 sectors of the disk.
  /Save=filename	Saves the current MBR to filename, where filename is a drive:\path combination to store the file. Substituting the word SECTOR for filename will store the MBR in a hidden sector on the disk
  /Restore=filename	Reads an MBR file from filename, where filename is an existing path:\filename containing the backed up contents of the MBR. Substituting the word SECTOR for filename will store the MBR in a hidden sector on the disk
  /ShowFile=filename	Show the partition structure from a backed up MBR filename or sector.
  /BootMenu	This option will list the available, bootable partitions, and allow the user to select one of them to set active.
  /Shutdown=#	An entry of 1 will forces Windows to shutdown only. An entry of 2 will force Windows to shutdown and reboot. This option may cause data loss if open programs contain unsaved data. 32bit Windows version only.
  /Result	Displays the return code for visual verification of success/failure.
  /HideErrors	Hides the display of any errors that may occur.
  CommandFile	If no switches are specified on the command line, and a file by the name of mbrwiz.opt exists in the same folder as the executable, then the mbrwiz.opt file will be parsed for possible switches. Switches can be located on the same line, or dispersed across multiple lines. This option can be used when it's not possible to pass switches on the commandline. The following is an example option file to save the disk 1 mbr to hidden sector, then reboot the machine ---------------------------- /disk=1 /save=sector /shutdown=1 ----------------------------