How to change the UUID of a virtual disc for use with VirtualBox

The virtual disc images we get from Microsoft usually have the same UUID as earlier disc images from Microsoft.

This is a problem if you wan't to run several images with VirtualBox because VirtualBox assumes, well that the different discs have different UUID's.

Here's how to change the UUID of new disc image.

Open a command prompt and go to the VirtualBox program folder. This is most likely C:\Program Files\Oracle\VirtualBox

Run the vboxmanage internalcommands sethduuid [file] command. For example:
vboxmanage internalcomands sethduuid "C:\DEMO\AX2012-A.VHD"