See this link:
Open Elevated Command Prompt in Windows 10

Then run the commands in post #16.

If you can boot using one of the drives then open administrative command prompt and copy and paste:


bcdedit /enum all
bcdedit | find "osdevice"
reagentc /info
diskpart
lis dis
lis vol
sel...

Open command prompt and copy and paste (all at one time):


bcdeit /enum all
bcdedit | find "osdevice"
reagentc /info
diskpart
lis dis
lis vol
sel dis 0