I don’t have access to boot from the M.2 SSD.
I don’t have access to boot from the M.2 SSD.
I purchased an M.2 Samsung 970 Pro 512 GB SSD today. I attempted various solutions such as updating the BIOS, choosing boot drives, but nothing resolved the issue. I installed Windows 10 using a USB flash drive on the M.2 slot. Specifications: CPU i7-5820K, motherboard x99 Deluxe, GPU GTX 970. The drive appears in my BIOS. For further assistance, check this link: https://gyazo.com/2f1b442f9460030cfb53c8c90be5ede5
It indicates your storage is fully occupied with no available space, which isn't accurate. Restart Windows. After reinstalling, remove all partitions and choose the 500GB one.
I repeated it about ten times; choosing the 500 GB created several partitions as you observed.