ssd problem,cant boot from nvme ssd

[potatobyte]

hello i was hoping someone could help me with an issue im having , i just purchased a 1tb samsung 960 evo to swap out with my sata 850 evo 500gb, i basically did a fresh install of windows on my 1tb ssd,  i had both ssds in at the same time, sometimes after a restart i would get  an AE" error code on my motherboard, i would restart again and it would boot normally, after booting into windows my computer would always only see the 1tb drive, today i tried to remove my sata ssd and my computer wouldnt start windows without it. 

 

pc specs:

cpu: 8700k 5ghz

motherboard: gigabyte z370 gaming 7

ram: corsair vengence rbg 8x2 3466

ssd: samsung 960 evo 1tb m.2 nvme

graphics card: msi gaming x 1080

[r2724r16]

Have you deleted windows off of your old sata ssd? (If you have, sorry because I don't understand english)

[Jarno.]

Open diskmanager.

 

What is your active partition?

 

Where is C partition located?

 

Where is bootloader located?

 

Both should be at same drive.

 

Already tried to format both drives via a live CD and then install Windows again with only 1 SSD connected to your PC?

[potatobyte]

I'm not to tech savvy, hopefully this answers some questions,  no I haven't tried reinstalling windows with only the drive in I hope I don't have to do that again, I didn't even know there was a problem until I tried to remove the old ssd

[Jarno.]

As i had thought. I have modified your picture a bit to explain.

 

Your first drive contains the boatloader which is necressary for the BIOS to know where the opperating system is located (even if this is at another drive). This is why your computer won't boot with the first drive removed. The safest way to fix this is format both drives and then reinstall Windows again with only 1 drive connected to the PC.

 

Edit: This can work just fine thought but rightclick at the "unused space" partition and create another partition so you can store data at it. This however can give problems later when 1 of the drives fails, you got double chance of failure this way.

[potatobyte]

thank you.