I have successfully installed Windows Vista 32-bit in a VM with VirtualBox. Now I'm trying to do the same with Windows Vista 64-bit and it just isn't working. I have created the VM but it seems that it won't boot off of the 64-bit Vista ISO image. It spits out this boot manager error.
The host OS is Windows 7 64-bit on a 64-bit Intel Core 2 Duo processor. Now, I have done the same thing and installed the same VirtualBox version on another computer, also running Windows 7 64-bit, created the VM, and then... during the VM setup process I noticed that it had additional options to choose from when I pick the guest Os. Here's a screenshot.
You can see those options in-between where it says 64-bit, I don't have those options on that other computer. Now, this one runs an Intel Core 2 Quad, a higher end model. It supports Intel virtualization technology, while the other one does not.
This is what the same dialog looks like on the Core 2 Duo computer. Here's a screenshot.
Could this be the reason why? Does that mean that you can't emulate a 64-bit Windows guest OS at all with VirtualBox, unless your processor supports Intel virtualization technology? I understand that this technology makes things much faster, but not letting you emulate that OS at all... that's a bit extreme, no?
If so, what do you suggest I use instead?