I'm trying to reinstall windows 10 and keep my files because my PC won't boot up. So I put Win on a USB and booted up with it but it will not let me install on my Hard Drive (let alone any other partition). What can I do to fix this error message besides delete all the partitions? I've messed around with secure boot in the BIOS a little bit, but I'm not sure if I've done anything productive. I have an Asus M5A99X if it helps