VirtualBox only showing 32 bit guest versions on my 64 bit host OS? Windows OS Windows Vista Microsoft Applications. 8 Comments 2 Solutions 7184 Views Last Modified:. I am setting up a test machine that will run many different Virtual Machines. I would like to go with a 64-bit host machine so that I can test 64-bit editions of windows AND standard 32-bit editions. Chasing Code How to Install a Windows 10 VM on a Mac. If I activate '32-bit', will '64-bit' be deactivated?
I'm in the process of deploying MS SCMDM



There was two steps to resolve this;
- Enable Intel Virtualisation Technology in my laptop's BIOS
- Power off the laptop and then power on (a hot restart was not enough for this BIOS option to be recognised.)