rescent now i have problem in my windows xp stating that
stop: 0*00000050
i try lot to overcome from that problem .. latter i formated the non dos partion via fdisk command but i found that only drive c has been formated and use fat file system and i lost all that my partion d, e, f, previously which have been in ntfs file sysem .. how can i recover that partion from dos any idea for it..

I'm not quite getting what the problem is. Could you please explain it a little clearer.

I think you are saying you formatted drives d,e,f in DOS and want to get the data back? Is this correct?

hum; WHY use the DOS command? You should have stayed with the controls under Admin Tools->Disk Mgmt. This would have avoided this mistake.

Use the Disk Mgmt tool and see what partitions are left.

you will need a data recovery program. DO NOT WRITE to the hard disk. If any files can be recovered at all (some may). There are many free such programs on the net.