Dual boot issue (Windows 7 & 10)

[stupiddimbulb]

I recently started using an ASUS H170 Gaming mobo, and my Windows 10 drive loaded fine. However, my Windows 7 drive did not (it said it couldn't verify the digital signature of windload.exe). I installed Windows 7 to that drive using a UEFI bootable usb stick (it's 3TB) but after it finished, I got the same error. I tried it two more times and both times, the same thing happened. Now when I boot the pc up and it asks me what OS to load, there are four Windows 7's (which don't load) and one Windows 10 (which does). Has anyone encountered this or know what I'm doing wrong? Thanks.

 

[SkyNetRising]

Try disabling secure boot in BIOS.