have windows installed on an old HDD which i'm using in a new PC build.
I've been stuck on this for a few days with different problems, so any help would be appreciated.
It booted into windows fine yesterday without a GPU, when i installed the GPU it no longer worked. I then removed the GPU again, still no boot.
The drive is recognized by BIOS
Not showing up as bootable device
I have updated the BIOS to latest version
Swapped SATA cables and ports
MOBO is ASUS ROG STRIX Z390-F