Windows O/S has never been know for being a portable Operation System. Im sure at one point you thought it was possible AND it IS. This technology works with linux. Altough this is still not possible through our traditional windows desktop environment PCs, this is obtainable in a virtualization environment. Imagine you can use your very own VPS server configured by you. Imaging you can use your own hard drive with our hardware. Yes it is posible however, your virutalization software must match ours. We use strickly Virt-Manager. It is open source and FREE therefore there are no major bugs.
In order for you to use your very own virtual disk image with our servers, we would simply need the VPS XML dump file and the disk image(s).