BIOS Secure boot not being accessible to change from "Disabled" to "Enabled"

[S_8230]

 

When I try to enable secure boot in my consumer BIOS, I can't access it. Is there any way to change that? I'm trying to enable the secure boot option. I've already checked an article about changing it however my "Platform mode" is not set to "Deployed", is there a method to change that? 

[Falcon_ASUS]

@S_8230 
Enabling or disabling Secure Boot will not result in data loss.
Thank you.