I initially installed Win 10 on an SSD and then migrated it to an M.2 and removed the SSD. Works fine. But I would like to reformat the SSD and use it for storage. When I reinstall it and set the M.2 as 1st Boot priority in Bios, it keeps defaulting to the SSD and the M.2 is then listed as inactive in Disk Management. If I connect the SSD after normal booting, it will not show up in disk management at all. Any ideas? Thanks very much.