Bios not registering M.2 SSD

[Zach Lingerfelt]

First off, My laptops an HP OMEN 17-AN012DX, it has a M.2 SSD slot right beside the HDD slot. I put a 500GB M.2 crucial SSD inside and cloned my OS and all it's software too it from the HDD. Okay, so this is where it gets weird and i can't seem to find an answer or what to do. So, i remove the HDD and the laptop wont boot at all, it just starts with a black screen saying no OS detected, so i'm like okay, i'll just plug back in the HDD, HOWEVER, when my computer boots, it does it lightning fast from the SSD, everything is butter smooth and loads extremely fast, everything is running perfectly fine from the SSD, but the problem is that the computer won't boot at all unless the HDD is plugged in, even though it's loading everything from the SSD. Whenever i try to go into bios settings to make the m.2 SSD the primary boot drive it doesn't even list it, it'll only show the HDD even though it's booting from the SSD. Hopefully one of you tech guys will know an answer to this problem, i guess if i have too i'll keep the HDD inside, but i'd still like to figure out what the problem is and why my computer only boots from the SSD if the HDD is also plugged in.

 

 

 

TLDR: Laptop only boots from M.2 SSD if HDD is also plugged in.

[Fasauceome]

There are probably some OS files stored on the hard drive.