How do I format a NTFS, FAT/FAT32 drive with XP installed?
Identify the file system that you are using. To do this, follow these steps:
Double-click My Computer on the desktop or from Explorer right click the My Computer Icon.
Right-click the disk that you want and then click Properties.
Look for the File System entry.
If the disk is formatted in NTFS
If the disk is formatted in NTFS, your options for returning to Windows 95, Windows 98 or Windows Me are limited. The Win 9X based operating systems do not read or recognize NTFS and you cannot convert the disk to use the FAT or FAT32 file system. The bootable disk that you use and the drive on which you want to install Windows 95, Windows 98 or Windows Me cannot use NTFS. Microsoft does not support any third-party solutions for converting NTFS to FAT or FAT32.
If the drive is using the FAT file system
If the drive is using the FAT file system, you can install any Windows operating system.
On a drive using the FAT32 file system, you can install Windows 95 OEM Service Release 2 (OSR2) or later.