Hello. I built my own computer and I was having issues with one of my hard drives. When connected to my motherboard, it does not show up under computer but it shows up under my device manager. I tried looking up ways to fix it but I couldn't seem to find a solution. I also tried disconnecting it and connecting it to a different port or not connecting it at all during boot but that results in a "bootmgr is missing" issue. Any help would be appreciated.