If and only if you are on 15.5.5 of Vmware workstation pro and your host is on Windows 10 version 2004, you need to go into the vm settings try under the hardware >> processors setting the virtualization (Intel or AMD) and the virtualization counters if your guest is any version of Windows.
In addition under the options tab >> advanced, make sure UEFI and secure boot are both checked for Windows 10 guests. For windows 7 guest make sure the BIOS instead of UEFI is selected. Prior versions may also need that BIOS setting also enabled.
I have not yet tried either "Credential guard" or "Device guard" active on the host OS. Please be aware to this point, I have seen nothing about this. I have given you the settings that work in my situation where the Host OS is Windows 10 version 2004 and the guests are Windows 10 version 1909 and Windows 7 service pack 1.
I hope this helps.
I forgot to note that I do have hyper-v installed on the host!