Quote Originally Posted by jimbo45 View Post
Hi there

Works fine

The USB is just like a physical DVD or an ISO image.

The reason this is good is that you might have created the USB from another computer and want to install the OS (as a VM) on a different machine.

OK I know it's easy to do it with an ISO image but on say a USB you can either make it bootable for the VM or say store a load of ISO's on it and access those as Virtual ISO's at boot time.

It's not one of those "Absolutely Must have" features but I like it and find it useful.

I also like being able to create UEFI bootable VM's on ageing hardware (specifically older servers) that are still only MBR / legacy boot systems too -- although that's another issue and probably only exists in the paid vmware workstation product. Not sure about VM's on HYPER-V if you can do that (i.e create a UEFI VM on a HOST which only supports MBR BIOS boot).

Hyper-V allows you to do create uefi or legacy bios as well. The mechanism is slightly different as you select generation 1 (bios) or gen 2 (uefi) when you set up vm rather than at install time.

One minor limitation is installer will not install if only bios installer for uefi or vice versa.

Having said that, same would apply in VMWare, but unlike Hyper-V, I assume you would not need to setup a new VM compatible with installer.

Basically with Hyper-V, you need to know upfront what type you are going to install.

This is less of an issue with Windows or Macrium iso as they are usually dual bios/uefi anyway.