Normally, however, systems are shipped with DOS and Windows preinstalled.
Dual boot manages the volatile files in the root directory.
They have names that will not cause any conflict with other operating systems. The Boot Manager utility is installed in its own non-DOS 1 megabyte Primary Partition on the first hard disk. It may be installed anywhere on a SCSI disk. On an IDE disk, it is safest to put Boot Manager somewhere in the first 528 megabytes where the BIOS is certain to be able to find it. Newer systems may have a more advanced BIOS that eliminates this restriction.