Just want to warn people that if you use the sandbox option in Windows 10 V 1903, then VMWare will not work anymore on your system. Even if you disable the sandbox option again. It seems VMWare is not compatible with some options that Windows 10 sandbox is using. Switching off the Virtual Credential Guard with GPEdit.msc, was the only way to get VMWare running again. Sandbox option is only available in the Enterprise, Professional and education versions off Windows 10.