I formated an external drive. It lost all the data but the drive worked. Tried data recovery to no avail. I went ahead and formated the external and it added a MBR. Then I was left with two sections, a formated and an unallocated. Pretty much half and half. I tried to extend the first partition and it says drives over 2TB. I deleted that MBR, but it seems nothing I try will get this external back to a 4TB. I don't want it to boot windows or anything. It's just for storing music, photos, files...etc. what do I do to get it back to a plain 4TB NTFS external drive?