Unable to format

Hello, everyone

I have a problem I have 2 HDD a 160gb and a 80gb I was useing them for xbox 360 at the time and months latter it stop reading and when i plug it in my computer it will not read. So i went to diskmgmt.msc and it shows it was in disk management but when i try to format it it wouldnt let me do it it keep saying cant format so i try to mest with the numbers and it let me do some of the 160gb but not all. I only can do some why is that. There is nothing wrong with the hard drives as you can see. here are some pics of the stuff i was doing.




if you can help me format the whole drive it would be nice thanks in advance.

Garm