tomandjerry,
It's possible that your 2.5" HDD has bad sectors such that Windows cannot write a partition table to the drive. I've also seen write-protect jumpers on some drives that inhibit writing to the device. Also, try removing ALL the master/slave/CS related jumpers on your 2.5" HDD and see if this works (only documented jumpers - NOT jumpers on the circuit board unrelated to the drive's address settings).
Go to
http://www.fujitsu.com/downloads/COM...rod-manual.pdf and see detailed specs for your 2.5" drive.
- John