I wiped my hard drive for reasons. I downloaded the windows 10 iso onto a USB and installed it to my HDD. After it got done installing even if I boot from the HDD it boots up the windows setup. I solved this by taking out the USB but now when I try to boot it says that I have to select proper boot device. everything in the boot order is fine. I am also interested in trying to get windows 7 but I don't know how to do so for free.