I recently had some issues with my laptop that required Lenovo remoting in and molesting settings and ultimately resetting things. Once again I ran into the nested virtualization not supported error. At this point, I am pretty well practiced in this **bleep** of an error. Went into windows 10 features and turned off "Virtual Machine Platform", rebooted and viola, it works again.
SInce I had to reboot anyway, I went ahead and made sure Intel VT-x was enabled in the BIOS.
I also made sure of my VM engine settings.
