Dave, Give this a look, it may answer your questions: https://www.howtogeek.com/193669/whats-the-difference-between-gpt-and-mbr-when-partitioning-a-drive/#content
It appears to me that if you are running the Windows operating system, the file system will still be NTFS, and the GPT, basically replaces the MBR on the disk. HTH, Rick Justice For answers to frequently asked questions about this list visit: http://www.jaws-users.com/help/
