Problems Installing Windows 7 with UEFI Windows 10 Forums
Windows 7 gets UEFI Secure Boot support years after reaching end of support - Pureinfotech
Microsoft sneaks Secure Boot support into Windows 7 shortly before support ends - gHacks Tech News
Here is a proof that windows 7 can be installed on uefi firmware i tried on VMware i also used a modified iso to achieve this easily i dont recomend installing windows
9 Ways to Fix Secure Boot Can Be Enabled When System in User Mode