There's another gotcha here too: if your deployment uses Windows 10 Credential Guard and/or Device Guard, the Hyper-V hypervisor is installed even though Windows reports the Hyper-V role as not installed, and you will not be able to run other virtualization solutions.

https://support.microsoft.com/en-us/help/3204980/virtualizat...

https://exoticbaryon.anset.org/2017/09/18/when-virtualbox-wo...