some questions about Windows 7 and secure boot

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I read that it is possible to run Windows 7 with Secure Boot enabled, replacing some Windows 7 boot files with Windows 8's one's. What are these files? Will it work with boot files of Windows 10 and newer? I'm answering that couse some day we won't be able to dissable it, there where computers where you couldn't dissable Secure Boot and maybe soon Windows 8.x would be unbootable with secure boot. What do you think?