=Foreward=
You cannot use a >=2.1TB partition as your boot device unless you have a UEFI bios. That is beyond the scope of this article.
When using a >=2.1TB partition, you should be running 64-bit Amahi.
Before you use a >=2.1TB drive on Windows, please read this support article: http://support.microsoft.com/kb/2581408