Contact Dish TV as they will be able to help you get your hard drive ready on the satbox.
FAT32 has a limit using Windows of making a 32GB partitition. To overcome this I normally use Windows to format the drive in NTFS to it's maximum size and then use a utility called guiformat.exe (which you can find with Google assistance). Sorry 2TB is the maximum that you can go up to with this method and I don't know of anyway to go beyond 2TB with FAT32.
If you are using a Freeview unit to format it may not be using FAT32 but more likely a linux partition