Hello and I am late to the party but I can not get my Toshiba 256 GB M.2 PCI-e to boot on Windows 10 at all. I can see it in Windows but not in the Bios at all. I have the Asua 970 pro gaming I can format the drive and like I said I can see in Windows Explorer just fine and that's it. I still can not get it to boot. I would really love the help if some one can help me PLEASE !!!! thank you so very much. I did the step by step I found online but I still can't get it to work. I have been able to put Windows 10 on the M.2 and see it in Windows Explorer I just can't get it to boot from the BIOS.