Using GPT partitions over 2 TB in Windows
Under Windows partitions and hard disks normally cannot exceed 2 TB with the Partitioning default MBR (Master Boot Record) partition table. If a connected hard disk (logical or physical) is larger than that, only 2 TB of the storage space will be used (unless one increases the sector size to 1,024 or 2,048 bytes, which makes two or four times the space accessible).
To use larger hard disk with the same sector size, the GUID Partition Table (GPT) must be used. To do so, simply move to the management menu (Manage) depicted in the screenshot and convert the data medium to GPT from the "Storage" menu item (Convert to GPT disk). The field in the screenshot is disabled, because the boot partition cannot be converted into a GPT data medium. It should however work for all other partitions.
Data media larger than 2 TB should be able to be used after that.