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Information for BIOS: the active partition is the partition from which an operating system (or another boot-loader) should be boot-loaded.
If both of the oses are windows oses you can use the MBR (Master Boot Record)to choose the OS you want to boot from or in your BIOS settings you can choose for it to automatically boot from a specific hard drive or partition(section of the hard drive).
You need to create a partition on your hard drive. You can then install separate OS on each partition. Run BIOS to select which partition to boot from.
On MS platforms, the system partition is used to hold the boot files. The boot partition holds all the windows operating system files. Leave it to Microsuck to mis-lable the partition hiearchy. The system partition holds what is loaded and executed first after the computer runs through its preliminary BIOS boot sequence. It tells the computer where to start loading the operating system from; the boot partition. The boot partition is where all the program files (thousands of them) needed by the operating system are stored. If the system partition is deleted; the computer will not find the operating system. If the boot partition is deleted, again; the computer will not find the operating system.
In a Windws PC, a sysem partition contains hardware level details of the hard disk and other partitions. It contains files that tell the Bios where to look for the boot loader, hence all disks must always have a system partition.A boot partition is any bootable partition in your hard drive that contains an Operating system or a bootable utility.The active Prtition in your case is the partition that contains the boot loader (Most cases the partition that contains the first installation of windows) inyour case windows 2000.This s also the System Partition not the boot partition
When you choose the installation partition to install on, choose your flash drive then on startup, hold the option key down, it should show you your flash drive partition to boot up with.
advsnced
Active Partition
The boot partition
Most operating systems uses the boot partition to boot the computer. In some operating systems, both the system partition and the boot partition are used to boot up the system.
The master boot program, and the partition table.
its what tell the computer what to boot first, it can be anything choosen by the bios, if you go into the bios you can change the boot order.