Hi Philip,
It?s also a win7 limitation, UEFI GPT supports much higher than 2T
As the MBR only locates a HD for a maximum range of 2T, the maximum partition and the starting position of last partition should be less than 2T.
For example, a 4T HD (3.7 available usually), you can divide it as
1.9 + 1.8T or 1T+0.8T+1.9T.
It is NG to do 1.3 + 1.2 + 1.2 , because the position of last part begins from
2.5 T.
For your consideration