Unable to RDP to Virtual Machine: CredSSP Encryption Oracle Remediation

If you get a message like this when you try to RDP:

Then:

  1. Open a Command Prompt window as Administrator.
  2. Run the following command to add a registry value:
    REG ADD HKLM\Software\Microsoft\Windows\CurrentVersion\Policies\System\CredSSP\Parameters\ /v AllowEncryptionOracle /t REG_DWORD /d 2