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
SP1 and have decided to first install the various components (MDM Gateway, Enrolment and Management Servers) in a isolated local 
VMware Environment before doing the live install. I stumbled upon a problem with running the 64bit Windows 2003 OS on my 32bit Windows 
XP laptop OS. Basically VMware Workstation was complaining that the CPU on the laptop was not compatible with the 64bit OS that i was trying to run on the VM.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.)