Abstract: Apparatus and methods that protect against boot sector viruses on partitioned media of a computer system. The apparatus and methods incorporate code in system firmware, or basic input/output system (BIOS) that parses the partition table. The Apparatus and methods thus provide virus protection implemented by the system firmware (BIOS). Exemplary boot sector virus protection apparatus and methods comprise a computer system having a nonvolatile memory and a mass storage device with a master boot record containing a partition table. The apparatus and methods store code in the nonvolatile memory that is capable of reading the partition table in the master boot record stored in the mass storage device, or stored in a secure area of the mass storage device. The stored code is used to read the master boot record, locate the partition table in the master boot table, locate a bootable partition within the partition table, and begin a boot process using the bootable partition.

Abstract: A high capacity computer article of manufacture to be loaded into a drive of a computer that includes a memory, comprising: a computer usable medium including at least one partition area and a boot sector, with the computer usable medium having computer readable program code means embodied therein, comprising: first computer readable code means fixed in the boot sector including a first BIOS parameter block for setting parameters for the medium if inserted in a floppy drive of the computer; and second computer readable code means fixed in the boot sector comprising a Partition Table for organizing the medium to include at least one partition and for designating an active partition.

Abstract: A high capacity computer article of manufacture to be loaded into a drive of a computer that includes a memory, comprising: a computer usable medium including at least one partition area and a boot sector, with the computer usable medium having computer readable program code means embodied therein, comprising: first computer readable code means fixed in the boot sector including a first BIOS parameter block for setting parameters for the medium if inserted in a floppy drive of the computer; and second computer readable code means fixed in the boot sector comprising a Partition Table for organizing the medium to include at least one partition and for designating an active partition.

Abstract: A high capacity computer article of manufacture to be loaded into a drive of a computer that includes a memory, comprising: a computer usable medium including at least one partition area and a boot sector, with the computer usable medium having computer readable program code means embodied therein, comprising: first computer readable code means fixed in the boot sector including a first BIOS parameter block for setting parameters for the medium if inserted in a floppy drive of the computer; and second computer readable code means fixed in the boot sector comprising a Partition Table for organizing the medium to include at least one partition and for designating an active partition.

Abstract: A method and computer system including a bootable storage media, preferably a CD-ROM, having a single bootable disk image that allows multiple emulations. A hard disk boot image including an MBR is provided at the beginning of the bootable disk image. A floppy DBR is provided at a predetermined sector boundary in the hard disk image so that the computer system can use either the hard disk or the floppy disk emulation at boot time. A computer article of manufacture embodying a single bootable disk image that allows both a hard disk or a floppy disk emulation is also provided.