Need bootable disc in order to format the system disk.
The "-s" switch in the format command is used to format the disk so that it is a "system" disk. In other words, it makes it a "bootable" disk.
I depends on your operating system. In DOS you would use fdisk to create the partition on your removable disk and the format command to actually perform the format.
Format a: /s will format the disk in the first floppy drive and copy the system files to it, making it a bootable disk.
The Compact Disk File System or CDFS is a format used for storing information on CD's. It uses a laser to burn data into the disk for later viewing.
Actually, you do not always have to format it first; many disks come "pre-formatted." A disk needs to be formatted with a file system so that the operating system can arrange data on it.
No, XP will format the disk if that's needed.
NTFS
FORMAT is a Microsoft command-line utility that is used for disk formatting. The function of the command prompt is to format a partition of the file system.
to format the hard disk go to My computer perform right click go to manage will open the window computer Management->storage->Disk Management(local) select the disk drive right click and once again click onto the format button see to that the file system should be in NTFS format
you can format your drive from DOS, but once you do that you wont have an operating system and your computer will be useless.
The second operating system should be on a different partition or disk. If you format the partition/disk that the unwanted operating system is on, the machine will have no choice but to boot to the remaining operating system.
You can format drives and partitions that are not in use by the system, but you can not extend the size of a partition.