VirtualBox VM Machines Unable to Start Throwing Error: VERR_NEM_VM_CREATE_FAILED

 Problem:

On my Windows 10 machine and after installing Docker, I was unable to start any of my Oracle VirtualBox VM machines, they all throw the same error: VERR_NEM_VM_CREATE_FAILED

 

 Solution:

I've uninstalled Docker first, then disabled "Virtual Machine Platform feature" from my Windows machine, restarted my machine, and then I managed to start my VirtualBox VMs without any issues.

From Run: optionalfeatures

Untick "Virtual Machine Platform"

Then restart your Windows machine.