check the article Formatting disks and drives at microsoft. It should be formated as NTFS
Make sure that the disk uses a format that windows recognizes
For any disk OTHER THAN THE ONE YOU BOOT FROM, simply open a command prompt and type: format d: (where "d" is the designator of the disk that you want to format) OR open windows explorer, select "my computer" then right click on the drive you want to format (again, it can't be the disk you boot from" If you want to format your C drive you'll need to boot from some other medium, such as the installation disk or a floppy.
Windows 7 and Windows XP are operating systems. You cannot format operating systems. But you can format your hard disk or hard drive. You can use Windows XP bootable CD to format HDD, but you will have to use Windows 7 Bootable Installation disk to install OS on your formatted drive.
you can't format the drive that you're running windows from while in windows. use the setup disk to run a recovery console and you should be able to format it from there using format c:
yes
Disk management
No, XP will format the disk if that's needed.
It means that you are currently using a file or files on the hard drive you are trying to format. If you are trying to format your primary drive you will need to boot to a boot disk - not the C: drive. For most versions of windows you will will need to make the boot disk(s) (an option under My Computer) and boot to those disks rather than your hard drive.
format B: /s
To format a 250 GB hard drive to FAT32, connect the drive to your computer, then open Disk Management (Windows) or Disk Utility (Mac). In Disk Management, right-click the drive, select "Format," and choose FAT32 from the file system options. In Disk Utility, select the drive, click "Erase," choose FAT32 for the format, and then confirm the action. Note that Windows may limit FAT32 to volumes up to 32 GB, so you might need to use third-party software for larger drives.
My Computer, right click on floppy drive-> Format... In the next windows choose Create a MS-DOS startup disk
Go To My Computer and OPEN the folder. Right-click the Disk you want formatted. Left-click to pick Format and choose your options, to format for instance A: disk. It will erase any files on any disk you choose to FORMAT so choose only a drive you want to clear and format.