Xbox 360 harddrive/ memory unit help

[Hattmeister]

Earlier this year, I purchased a new harddrive for my 360. My friend was helping me transfer my content from the old harddrive to the new one.
Instead, he managed to erase all the data, and turn both harddrives into "Xbox 360 memory units". This made the space on the new harddrive go from the 250 gb i purchased, to 18 gigs.
So my question would be; can I restore the harddrive so that it will be read as a harddrive by the 360, or am I f*cked?
(Sidenote, the data is not a concern, since I know that it's absolutley and utterley destroyed)

 

[jmroutson1988]

Wow I didn't think that was possible. Have you contacted Microsoft?

 

[Hattmeister]

Yes, and the tech-support guy sat quiet for a whole minute, and then said, and I'm quoting: "You have got to be f*cking kidding." Then he hung up.

 

[LooK iTz Jinjo]

Try reformatting it. Go to System > Memory > Highlight the HDD and press (Y) > Format.

If that doesn't work then I have no idea what will. Oh also:

You have got to be fucking kidding

 

[Hattmeister]

Already tried it, it just makes it into a memory unit again...