I did a search about this problem and someone else had exact same issue except he didn't get further help because he was using MacOS.
Link: Problem with new version Player 16This problem is existing for me on Windows 10 Pro as host and guest VM.Issue: After updating host desktop to Windows 10 20H2. Enabling virtualization is not possible. Can't turn on vm anymore. See picture of the issue.
Hi. Thanks for your reply. I forgot to mention yes I figured this out already right away.
My point is that the new update is lot letting us use Virtualization. I would like to have virtualization available for use. It was working with Windows 10 2020 update.