Zitat von kaber im Beitrag #1214@kaber
Zitat von Camccardell im Beitrag #1213Nothing in bios. 0 drives available. I disconnected others only ssd is attached.
Does it show windows boot manager in the bios after you installed windows?
I had nearly the exact same problem as you, I could see the m.2 drive when I booted into my old version of Windows and use it no problem - but I just couldn't get it to boot to the m.2 after installing from a thumbdrive.
Turns out I messed up flashing the BIOS using the flashback tool Asus uses.
You need to make sure your BIOS update file is named properly, in my case my Maximus Hero VI file name was M6H.cap. You need to have it on a completely blank USB drive formatted to FAT or FAT32 (sometimes the drives have hidden partitions too if you used it as a boot drive before). Make sure it is in the right USB slot on the back of the motherboard according to your manual and hold down the flashback button for about 3 seconds. It should blink off and on for a while (mine did for about 30 seconds) and then the light should turn off.
My problem was that my light flashed for a while and then turned solid blue - I mistook that as it being done, but it actually means it failed to flash.