Windows GPT-based disks have multiple, redundant partition tables so that if one is detected as being corrupt, it can self-heal itself from a redundant copy of the table. If the table becomes corrupt, the entire disk must be recovered from backup. Samsung 950 Pro M. Samsung 950 PRO 256GB and 512GB M.2 NVMe PCIe SSD Review by Allyn Malventano at PC Perspective. MBR disks only have 1 partition table to keep track of all the blocks in the partition. Booting from an NVMe PCIe Intel Solid-State Drive - Technology Brief Apr 2015 by Intel. 'Perhaps one of the biggest pitfalls of MBR-based disks is their potential for corruption of the partition table, a region on the disk that maps sectors to logical block numbers.

I formatted SSD and installed using GPT just for the heck of it, and converted all my data drives to GPT, which can actually be done on the fly with no data loss using software (not the windows drive though). The ZBOX edge CI341 mini PC is only compatible with 2242/2280 SATA M.2 SSDs. GPT, or the GUID Partition Table, is an evolution forward and tends to protect drive data better but in all practicality you will notice no difference using either unless you have a large 4TB hard drive, then you will have to use GPT on that drive. The likely reason why is the format of the M.2 SSD is not compatible. Windows tends to automatically format install drives using the MBR or master boot record.

How to format ssd from bios