I have NT installed, how do I install DOS?

A. Follow the steps below

  1. Make an emergency repair disk (rdisk - Update Repair Info)
  2. Ensure you have NT installation disks (can make by winnt32 /ox)
  3. Reboot the machine and boot off of the MS-DOS disks
  4. Install DOS (same as doing a SYS a: c: from a dos bootable disk)
  5. Machine will reboot into DOS
  6. Reboot Machine and boot off of NT installation disks
  7. After 2 disk will give options, press R for repair
  8. Deselect all options except "Inspect Boot Sector" and continue
  9. Press Enter to detect hardware and insert disk 3
  10. The procedure will ask if you have an Emergency Repair Disk (ERD), say Yes and insert the ERD.
  11. The machine will then reboot into NT again
  12. Once in NT goto a DOS session
  13. Type - attrib c:\boot.ini -r -s
  14. edit boot.ini and insert at the bottom
  15. Type - attrib c:\boot.ini +r +s
  16. Reboot the machine and you will have MS-DOS and NT options! Easy :-)

The procedure above will only work if the C drive is FAT.

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