Invalid Drive Specification

non partitioned is the problem.
You will need to partition it so that a drive letter (c:) can be assigned. Use the fdisk command.

There is one other possibility here.

If you are using a Windows 98 or earlier Boot Disc and are running an XP Computer with a NTFS Partition the Boot Floppy will be unable to read a NTFS Partition and you will get that error message as what is effectively a DOS Command Prompt is unable to access a NTFS Partition.

You'll need to use something like a XP Boot Set of Floppies to read the HDD this is possible to make from the XP CD or you could use a Live Linux like Knoppix to boot off a CD and read the NTFS Partition/s.

Col

Your OS loaded from your boot floppy recognize NTFS partition?
I suppose no, and this is your problem. Make a boot floppy with NTFS recognizing OS.

The HDD is formatted as NTFS. As your boot disk is dos, it cannot read NTFS drives. You could create a bootable disk that can access with utils like ntfsdos, however for time, and ease of use here is a great boot CD on the net called Barts PE Boot CD. Its a must have for Desktop support.

The HDD is formatted as NTFS. As your boot disk is dos, it cannot read NTFS drives. You could create a bootable disk that can access with utils like ntfsdos, however for time, and ease of use there is a great boot CD on the net called Barts PE Boot CD. Its a must have for Desktop support.