The bootmanager BootStar manages a second partition table internally (invisible to other programs / operating systems) with up to 15 entries. This table is called the "BootStar partition table". While the computer is booting, up to four entries are copied by the bootmanager BootStar with the aid of the bootprofiles. These entries are copied from the internal BootStar partition table to the master boot record partition table. The bootmanager is located on the harddisk at the end of the first cylinder ("track 0"). This location is used by a few harddisks and bootmanagers. Therefore, the capacity of your harddisk is not limited by the bootmanager BootStar. The visibility of the partitions may be "switched on" using the bootprofiles. These may be protected individually using passwords, so that no one without the proper password has access to your data. Furthermore, it is also possible to hide bootprofiles, so that these may only be offered after a specific key combination has been used. Thus, a non-authorized person cannot even detect, whether additional bootprofiles (partitions) even exist.