How to Check if Your CPU Supports Second Level Address Translation (SLAT)
Never enable the Hyper-V role on a DC. You should rather either install your OS with no other role than Hyper-V, or install just Server core that acts as a Hyper-V server. You can then install VM's under that and make them DC's.
A DC should be dedicated to DC tasks (DC, DNS, DHCP etc), and Hyper-V should be dedicated for Hyper-V.
- You need open an elevated command prompt, read “run as administrator”. Now you will need to navigate to the C: Drive, you can do this by typing “cd c:\” To see if your processor supports SLAT you will need to run “coreinfo.exe -v”. On an Intel if your processor supports SLAT it will have an asterix in the EPT row. This is seen in the screenshot below.
coreinfo.exe -v