With the Boot Manager feature, each time users start their computers, they can choose which operating system to load. The operating systems are installed in separate partitions on the hard disk.
The Boot Manager requires its own 1MB partition. It must be installed in a primary partition on the first hard disk that is connected to the computer. In addition, there must be room on the hard disk for all operating systems that will be installed. If there is sufficient free space on the hard disk, some or all existing partitions can be preserved. However, if there is not sufficient free space, existing applications and data must be backed up before repartitioning the hard disk during installation.