Windows Secure Boot problem.

[dire cosmos]

One thing that is worthy mentioning first, is that this laptop came with Lux (Lenovo's Ubuntu-based system), but I changed it to Windows.
I can set Secure Boot to Enable, but it gets disabled when I try to boot.
Have tried using Recovery.
Yet, all results were the same.

[radiant cargo]

That’s because you also need to enroll Microsoft’s CA before it will go into full Secure Boot

[dire cosmos]

isn't that a microsoft server thing?

[radiant cargo]

Kind of

But most laptops will have an option in their BIOS to "Load Default Keys"