I have Windows 10 Pro, version 21H1 build 19043.1052. I have AMD-V enabled in BIOS, Secure boot and TPM 2.0
I am the only user of the computer, and in the security part, device security, core isolation, there are two settings that I cannot edit: Integrity of memory and firmware protection. In both of them I get a message in red that says "This configuration is managed by the administrator". However, as I said previously, I am the only user and administrator of the PC. Memory integrity appears enabled but grayed out, and firmware protection appears disabled.
I have managed to touch the "memory integrity" setting by changing Enabled from a 1 to a 0 within HKEY_LOCAL_MACHINE \ SYSTEM \ CurrentControlSet \ Control \ DeviceGuard \ Scenarios \ HypervisorEnforcedCodeIntegrity in the registry. However, that change is undone every time I reboot the system. In group policies, gpedit.msc, under System - Device Guard - Virtualization-based security, I have set to Enabled, Security Level set to Secure Boot and DMA protection, Virtualization based protection for code integrity enabled with UEFI lock, Credential Guard enabled with UEFI lock, and secure boot enabled.
I have not found where to enable firmware protection and it does not show me the message "This configuration is managed by the administrator".

How can I prevent the "This setting is managed by the administrator" message from being displayed on every reboot for Memory Integrity, and how can I enable
firmware protection?