

According to Microsoft, to make an operating system fully support storage devices that have 2TB+ storage space, the device must be initialized by using GUID partition table (GPT).

For a bootable system volume, the system firmware must use UEFI. That is to say, UEFI boot is needed to boot from a disk that is greater than 2TB and GPT is required for partitions larger than 2TB.

You don’t need UEFI to have a non-bootable drive larger than 2TB, only GPT.Īfter learning the relationship between Windows 10 and 4TB hard drive, you may want to know how to let Windows 10 fully use 4TB hard drive. The following part discusses several common seen situations that may occur when you install 4TB hard drive on Windows 10. When installing 4TB disk on Windows 10, you may come across disk not detecting or 4TB only shows 2TB. When installing Windows 10 on a 4TB HDD, you may find it did not partition correctly.
