XBOX 360 hard drive problem

I had an xbox 360 fat lying from years.i cleaned it internaly as well as externally i started the console it worked but its internal hard drive of 20gb was currupted so i watched some tutorials on youtube and i removed it from its case and i pluged it in my pc through sata ports. and playing with cmd i did it but now when i am plugging it in it is not getting detected it is segate 20gb hard drive please help. Also when i check through aomei partition master it showed me it has become ntfs. What can be done please answer.

:)