New pc wont boot.

I bought a pc with no o/s,i have two drives that work/boot on my current pc w10 + w11,i instaleld one at a time both wont boot,i get as far as the windows log then it stalls. Ive made a usb bootable via windows,didnt work,i used an iso didnt work?

The bios see all the drives ive had and it sees the usb.

I also installed a graphics card before booting up,would it make any difference if i took it back out and tried to boot up?

Any help would be appreciated.