nAh!!ambot unsai tubag!!hahaha
Create two partitions in ur hard drive and install Windows '98 on Drive C and install Windows 2000 on Drive D to another partition.
You don't. Boot priority is specifed by the BIOS, not Windows 2000.
NTLDR is indeed a key boot file in Windows 2000 and all of the Windows operating systems since Windows NT. A machine will not boot without that file.
Four (4) startup disks are needed to boot Windows 2000 from floppy disks.
Dual Booting, using a program called a 'Boot Loader'. Note: If you want boot both opreting system win xp and win 2000 at a time then you use VM ware software.
Yes, Boot with disk, then choose "Windows Recovery Console"
Change the boot order in the CMOS/BIOS.
NTLDR
The floppy disk has nothing to do with the operating system on the hard drive. You can use a floppy disk created in Windows XP to boot a computer that has Windows 2000, Windows 98, Windows 95, Windows 3.1, Windows Vista, Windows 7, Linux, Solaris, FreeBSD, etc...
1-upgrade 2-clean boot 3-dual boot
...with Windows XP Professional already installed on your computer. Windows Vista cannot be installed without Windows XP Professional installed first on your computer, it's the same with Windows 7; Windows' latest operating system (OS).
Windows 9x/ME = fdisk /mbr Windows 2000/XP = Fixmbr