Its pretty much like in that thread;
But i cant solve it.
Accidentally enabled raid mode in bios and windows won't boot
I'm not sure what I did, but on my asus z270-A motherboard that I have I was snooping around bios and it said to ez tune raid mode, I enabled it and then it said to select port I clicked cancel because it said it would wipe my drive, and now I cant see my SSD or my Hard drive in bootable device...
forums.tomshardware.com
But i cant solve it.