Kernal DMA Protection in dell inspiron 14 5405

I have upgraded the OS from home to pro to Enterprise version 20H2 Then I checked the Hyper-V using the system info command from Cmd The output was compatible: 64-bit processor with second-level address translation (SLAT) is enable Virtual Machine Monitor Mode Extensions is enable Virtualization Enabled In Firmware (These require enabling from bios) Data Execution Prevention is enable I entered the bios by pressing F2 For Hyper-V the BIOS has one line which is: Virtualization Technology I have enabling it. Now I have verified Hyper-V requires using the system info command The result was Hyper-V Requirements: A hypervisor has been detected. Features required for Hyper-V will not be displayed. Meaning, Hyper-V is detected but!!!!! I tried Coreinfo When disable Virtualization Technology on bios HYPERVISOR - Hypervisor is present SVM * Supports AMD hardware-assisted virtualization NP * Supports AMD nested page tables (SLAT) SVM and slat mode is enable And when I enabling Virtualization Technology from the bios SVM and slat mode is disable Therefore, I cannot use Device Guard and Credential Guard.