Hi there. I have a brand new 4TB hard disk that was formatted with NTFS. I wanted to convert it to HFS+ but the conversion utility just gives me a "bad parameter of function" error and an error code 0x1100a. Does anyone have any idea why this is happening. The disk is brand new, although the enclosure is not but it has been working with other drives perfectly well. I am running Windows 8.1 Thanks Aaron